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Title: GUTTER KING.
Creator: MORRIS, KEITH, Jones, Robert, University of Central Florida
Abstract / Description: "Gutter King" had a threefold purpose: to create a feature film using limited resources, to make the film bridge the gap between a defined artistic aesthetic and its broader distribution goals, and to make the film entertaining to its target market of 14-24 year old males. The methods used: exploiting new digital technology, using a limited workforce (crew), and implementing a planned improvisational structure.
Date Issued: 2008
Identifier: CFE0002449, ucf:47724
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002449

Title: HEAT TRANSFER IN MULTI-LAYER ENERGETIC NANOFILM ON COMPOSITES SUBSTRATE.
Creator: amini manesh, navid, Kumar , Ranganathan, University of Central Florida
Abstract / Description: The main purpose of this work is the physical understanding and the numerical description of the reaction of the dense metastable intermolecular composition (MIC). Energy density of MIC is much higher than conventional energetic material; therefore, MIC finds more applications in the propellant and explosive system. The physical model includes the speed of propagation and rate of reaction, and the relationship between the layer thickness, heat rate, and length of the flame based on physical...
Show moreThe main purpose of this work is the physical understanding and the numerical description of the reaction of the dense metastable intermolecular composition (MIC). Energy density of MIC is much higher than conventional energetic material; therefore, MIC finds more applications in the propellant and explosive system. The physical model includes the speed of propagation and rate of reaction, and the relationship between the layer thickness, heat rate, and length of the flame based on physical model. In Part I of this thesis, a one-dimensional model based on Weihs was developed for 20 pairs of a multi-layer of aluminum and copper oxide. This problem was solved using an assumed value of constant atomic diffusion in Arrhenius' equation to obtain the velocity of self- propagation. Using the maximum and minimum measured velocities in a similar configuration, the activation energy was computed and was found to be significantly different. When the velocity was used to obtain a linear temperature profile, the margin of error was significant as well. Therefore, this method was seen to have severe shortcomings. In Part II of this thesis, adiabatic unit cell of one layer of aluminum and copper oxide in an ideal reaction was considered. Temperature profile based on chemical heat generation and phase transformation of reactants has been calculated. This model confirmed the highest possible temperature during reaction of 2920 C ± 5% obtained in the literature, however, the model was unable to provide other important flame characteristics. In Part III, a two-dimensional model was developed introducing the flame at the interface. A black box theory has been used to simplify some of the characteristics of the flame, ignoring diffusion characteristics. Using this model, the length of flame was calculated using the measured value of the speed of propagation of the flame. Measuring some of the characteristics of the flame was the main goal of Part III of this thesis. Controllable environment was created for the multilayer thin film of aluminum and copper oxide to eliminate the number of effective variables that affect the speed of propagation. Transformable heat of reaction was used to control the speed of propagation. In addition, a MIC sample was designed and fabricated to measure the speed of propagation with an accuracy of 0.1 m/s. This measurement technique was used to measure the speed of propagation on variable substrate up to 65 m/s. The flame length was also calculated for different speeds of propagation over different substrates. The temperature distribution on the substrate was calculated numerically. Significant improvements have been made in Part III; however, this model does not provide concentration profiles. For future work, a more complete two-dimensional physical model will be developed for self-propagation reaction of multilayer thin film of aluminum and copper oxide based on thermal transport and atomic diffusion. This two-dimensional model includes the reaction rate, speed of propagation and the temperature profile. Since this model relies on a number of physical variables that are as yet unknown, further work is warranted in this area to carry out a thorough computational study.
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Date Issued: 2007
Identifier: CFE0001775, ucf:47265
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0001775

Title: Waking Up White: The Search For Black Happiness.
Creator: Gregory, Jason, Mills, Lisa, Major, Anthony, Peterson, Lisa, Peters, Philip, Raimundi-Ortiz, Wanda, University of Central Florida
Abstract / Description: Waking Up White (WUW) is a television pilot written, directed and co-produced by Jason D. Gregory serving as part of his thesis requirements for earning a Master of Fine Arts in the Entrepreneurial Digital Cinema program at the University of Central Florida. The project attempts to answer the question (")what if(") by placing the main characters in a (")fish out of water(") scenario. In WUW a Black family wakes up White and has 30 days to determine if they'd rather return to their cultural...
Show moreWaking Up White (WUW) is a television pilot written, directed and co-produced by Jason D. Gregory serving as part of his thesis requirements for earning a Master of Fine Arts in the Entrepreneurial Digital Cinema program at the University of Central Florida. The project attempts to answer the question (")what if(") by placing the main characters in a (")fish out of water(") scenario. In WUW a Black family wakes up White and has 30 days to determine if they'd rather return to their cultural roots or stick with the (")new skin(") that they are in. Upon awakening to their new reality, the neighborhood that they fled is in the early stages of gentrification and now whatever decision they make not only affects them but also their former community.WUW was produced for $15,000, was shot on location in Central Florida and employed an all Central Florida based cast and crew. This thesis outlines the theories and processes used to bring this project to fruition.
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Date Issued: 2019
Identifier: CFE0007464, ucf:52671
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0007464

Title: HOPE FOR A THORN: THE MAKING OF A MICROBUDGET DIGITAL FEATURE FILM.
Creator: Kitzinger, Leslie, Stoeckl, Ula, University of Central Florida
Abstract / Description: This paper provides a look at the making of a microbudget feature film. It seeks to explain my growth as a filmmaker and an artist, through the challenges, both narrative and practical, that I encountered, as well as provide documentation following the process. Hope for a Thorn: The Making of a Microbudget Digital Feature Film includes elements from each phase of filmmaking, from script and preproduction to the marketing plan. This document shows the tremendous amount of preparation and...
Show moreThis paper provides a look at the making of a microbudget feature film. It seeks to explain my growth as a filmmaker and an artist, through the challenges, both narrative and practical, that I encountered, as well as provide documentation following the process. Hope for a Thorn: The Making of a Microbudget Digital Feature Film includes elements from each phase of filmmaking, from script and preproduction to the marketing plan. This document shows the tremendous amount of preparation and planning that goes into the making of a microbudget digital feature film.
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Date Issued: 2008
Identifier: CFE0002322, ucf:47880
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002322

Title: THE MISEDUCATION OF SIMON KRAUS:A RECORD OF THE FILM'S PRODUCTION.
Creator: Diaz, Michael, Stoeckl, Ula, University of Central Florida
Abstract / Description: The Miseducation of Simon Kraus is a feature-length film produced, written, directed, and edited by Michael J. Diaz as part of the requirements for earning a Master of Fine Arts in Film & Digital Media from the University of Central Florida. The thematic aim of the film is to paint a portrait of the Millennial Generation on the microcosm, by following the story of an apathetic protagonist whose dreams and ambitions are threatened by his own character. The statements, documents, and images...
Show moreThe Miseducation of Simon Kraus is a feature-length film produced, written, directed, and edited by Michael J. Diaz as part of the requirements for earning a Master of Fine Arts in Film & Digital Media from the University of Central Florida. The thematic aim of the film is to paint a portrait of the Millennial Generation on the microcosm, by following the story of an apathetic protagonist whose dreams and ambitions are threatened by his own character. The statements, documents, and images contained herein serve to record the experience and motivation behind the film.
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Date Issued: 2010
Identifier: CFE0003550, ucf:48918
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0003550

Title: STORMS NAMED AFTER PEOPLE.
Creator: Ballard, Sarah E, Danker, Elizabeth, University of Central Florida
Abstract / Description: Storms Named After People is a coming-of-age film about loneliness, Florida's disposition during holidays, freedom within abandonment, and how one translates time and space when alone. I intend for this film to capture a unique and authentic representation of young women that I find difficult to come by in mainstream cinema. Some other things I plan to accomplish with Storms Named After people include subverting the audience's expectations, challenging tired stereotypes of women and various...
Show moreStorms Named After People is a coming-of-age film about loneliness, Florida's disposition during holidays, freedom within abandonment, and how one translates time and space when alone. I intend for this film to capture a unique and authentic representation of young women that I find difficult to come by in mainstream cinema. Some other things I plan to accomplish with Storms Named After people include subverting the audience's expectations, challenging tired stereotypes of women and various relationships among them, capturing loneliness from an optimistic point of view and embracing availability within a micro-budget filmmaking process. A final product that accomplishes all the above will be considered successful.
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Date Issued: 2018
Identifier: CFH2000338, ucf:45875
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH2000338

Title: DECONSTRUCTION OF THE ROMANTIC COMEDY IN CRAZY EX-GIRLFRIEND.
Creator: Crivelli, Mary E, Mauer, Barry, Preston-Sidler, Leandra, University of Central Florida
Abstract / Description: This research seeks to unpack the narrative of Crazy Ex-Girlfriend using semiotics, particularly through Roland Barthes' work in Mythologies and A Lover's Discourse. The goal of this research is to demonstrate long-form storytelling's ability to interrogate and revisit criticism through consideration of Crazy Ex-Girlfriend's role as an ongoing satire of romantic comedies. This research culminated in a thesis discussing the semiotic myths that Crazy Ex-Girlfriend interrogates, and the process...
Show moreThis research seeks to unpack the narrative of Crazy Ex-Girlfriend using semiotics, particularly through Roland Barthes' work in Mythologies and A Lover's Discourse. The goal of this research is to demonstrate long-form storytelling's ability to interrogate and revisit criticism through consideration of Crazy Ex-Girlfriend's role as an ongoing satire of romantic comedies. This research culminated in a thesis discussing the semiotic myths that Crazy Ex-Girlfriend interrogates, and the process of deconstruction that occurs within the text. The thesis applied the "fragments" identified in Barthes' A Lover's Discourse to corresponding scenes in Crazy Ex-Girlfriend, with a focus on the musical nature of the show. This research also analyzed Crazy Ex-Girlfriend's role as a deconstruction of the romantic comedy genre, and its position as either upholding or subverting the myth of the "crazy ex-girlfriend." Through applying A Lover's Discourse to an hour-long television drama (in this case Crazy Ex-Girlfriend), this research contributes to the field of cultural studies by considering network entertainment media from a critical perspective, and utilizing A Lover's Discourse in an innovative manner.
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Date Issued: 2018
Identifier: CFH2000290, ucf:45702
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH2000290

Title: INVESTIGATION ON INTERACTIONS OF UNSTEADY WAKES AND FILM COOLING ON AN ANNULAR ENDWALL.
Creator: Golsen, Matthew, Kapat, Jayanta, University of Central Florida
Abstract / Description: In recent decades, greater interest in the effect of rotational wakes on gas turbine film cooling applications has produced increasing numbers of studies on these unsteady phenomena. Wakes are primarily shed from upstream components such as transition duct walls, stator vanes, and rotors. Studies have shown that in areas of unsteady flow, the best performing parameters in conventional steady investigations may not be the best for unsteady applications. One common method of modeling the...
Show moreIn recent decades, greater interest in the effect of rotational wakes on gas turbine film cooling applications has produced increasing numbers of studies on these unsteady phenomena. Wakes are primarily shed from upstream components such as transition duct walls, stator vanes, and rotors. Studies have shown that in areas of unsteady flow, the best performing parameters in conventional steady investigations may not be the best for unsteady applications. One common method of modeling the unsteady wake interaction in subsonic flows is the use of spoke wheel type wake generators using cylindrical rods to produce the velocity detriment and local increase in turbulence intensity. Though the impact of wakes have been studied for decades on airfoil losses and boundary layer transition, only recently has the film cooling and wake interaction been investigated. The existing work is primarily on leading edge models and airfoil cascades. The primary parameter characterizing the unsteady wakes is the dimensionless or reduced frequency known as the Strouhal number. The film cooling jet itself has dominant frequencies resulting from the shear and the jet trailing wake shedding, depending on the injectant flow rate. There exist great deficiencies in the fundamental understanding of the interaction of these two frequencies. Heat transfer considerations are also relatively recent being studied only since the early 1990's. Heat transfer coefficients and film cooling effectiveness have been reported for leading edge and linear airfoil cascades. In the case of the linear cascade, no data can be taken near the endwall region due to the varying tangential velocity of wake generating rod. The current work expands on this initiative incorporating a sector annular duct as the test setting for the rotating wakes focusing on this endwall region. Studies in to the effect of the rods in this alternate orientation include film cooling effectiveness using temperature sensitive paint, impact of wake rod to film cooling hole diameter ratio, and time accurate numerical predictions and comparisons with experimental work. Data are shown for a range of momentum flux ratios and Strouhal numbers. The result of this work sets the stage for the complete understanding of the unsteady wake and inclined jet interaction.
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Date Issued: 2011
Identifier: CFH0004094, ucf:44796
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH0004094

Title: A BEAUTIFUL BELLY: TOWARD AN INTIMATE CINEMA THROUGH MICROBUDGET PRODUCTION TECHNIQUES.
Creator: Gay, Andrew, Johnson, Mary, University of Central Florida
Abstract / Description: A Beautiful Belly is a feature-length, microbudget, digital motion picture produced, written, and directed by Andrew Kenneth Gay in pursuit of the Master of Fine Arts in Film & Digital Media from the University of Central Florida. The guiding question behind the production of A Beautiful Belly was whether digital "no budget" production was particularly suited to the telling of a particular kind of cinematic story - the interior journey. The pursuit of an intimate cinema shaped every decision...
Show moreA Beautiful Belly is a feature-length, microbudget, digital motion picture produced, written, and directed by Andrew Kenneth Gay in pursuit of the Master of Fine Arts in Film & Digital Media from the University of Central Florida. The guiding question behind the production of A Beautiful Belly was whether digital "no budget" production was particularly suited to the telling of a particular kind of cinematic story - the interior journey. The pursuit of an intimate cinema shaped every decision by the filmmaker and his collaborators, and this thesis is a record of their production experience.
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Date Issued: 2010
Identifier: CFE0003348, ucf:48452
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0003348

Title: TUNABLE INFRARED METAMATERIALS.
Creator: Shelton, David, Boreman, Glenn, University of Central Florida
Abstract / Description: Metamaterials are engineered periodic composites that have unique refractive-index characteristics not available in natural materials. They have been demonstrated over a large portion of the electromagnetic spectrum, from visible to radiofrequency. For applications in the infrared, the structure of metamaterials is generally defined using electron-beam lithography. At these frequencies, the loss and dispersion of any metal included in the composite are of particular significance. In this...
Show moreMetamaterials are engineered periodic composites that have unique refractive-index characteristics not available in natural materials. They have been demonstrated over a large portion of the electromagnetic spectrum, from visible to radiofrequency. For applications in the infrared, the structure of metamaterials is generally defined using electron-beam lithography. At these frequencies, the loss and dispersion of any metal included in the composite are of particular significance. In this regard, we investigate deviations from the Drude model due to the anomalous skin effect. For comparison with theoretical predictions, the optical properties of several different metals are measured, both at room temperature and at 4 K. We extend this analysis to the coupling between plasmon and phonon modes in a metamaterial, demonstrating that very thin oxide layers residing at the metal-substrate interface will significantly affect the spectral location of the overall resonance. Oxide-thickness-dependent trends are then explored in some detail. Potential applications of this general area of study include surface-enhanced infrared spectroscopy for chemical sensing, and development of narrowband notch filters in the very long wavelength infrared. We then consider various possibilities for development of tunable infrared metamaterials. These would have wide applicability in dynamically variable reflectance surfaces and in beam steering. We consider several methods that have been previously shown to produce tunable metamaterials in the radio frequency band, and explore the challenges that occur when such techniques are attempted at infrared frequencies. A significant advance in tunable-infrared-metamaterial technology is then demonstrated with the use of thermochromic vanadium dioxide thin films. Highlights include the first demonstration of a tunable reflectarray in the infrared for active modulation of reflected phase, the first demonstration of a tunable resonance frequency in the thermal infrared band, and the largest resonance-frequency shift recorded to date in any part of the infrared. Finally, future work is proposed that holds the promise of wideband frequency tuning and electronically-controllable metamaterials.
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Date Issued: 2010
Identifier: CFE0003201, ucf:48575
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0003201

Title: BAKER:THE MAKING OF AN INDEPENDENT THRILLER.
Creator: Lopez, Laura, Finch, Randy, University of Central Florida
Abstract / Description: Baker is an independently financed low budget film that examines the ambiguous nature of compassion in the day-to-day life of hospice care personnel. The creation of the film entailed three stages: pre-production, production and post-production in which numerous artistic, financial and logistic challenges arose and threatened the completion of the picture. The complex nature of the subject matter required particular attention to the structure of the script. The budgetary restrictions enforced...
Show moreBaker is an independently financed low budget film that examines the ambiguous nature of compassion in the day-to-day life of hospice care personnel. The creation of the film entailed three stages: pre-production, production and post-production in which numerous artistic, financial and logistic challenges arose and threatened the completion of the picture. The complex nature of the subject matter required particular attention to the structure of the script. The budgetary restrictions enforced a minimalist approach to locations as well as other creative considerations such as the size of the cast and period setting. The shooting location dictated the framework of the aesthetic approach in design as well as in mise-en-scene for the film. The post-production phase redefined the film once the structure became dependant on the relationship between footage and aural elements rather than on the blueprint of the script. This artistic journey imposed a need for creative problem solving and adaptability. The process of working on Baker allowed me to have a full understanding of my role in the collaboration with talent, the management of crew and my creative duty to maintain the essence of the script while realizing my artistic vision. The overall experience has deepened my commitment to storytelling in the collaborative art of cinema. The result is a highly personal expression of my voice as a director, a female, and social critic
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Date Issued: 2008
Identifier: CFE0002327, ucf:53151
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002327

Title: Nightgaze: A Microbudget Visual Mixtape.
Creator: Santiago, Maillim, Harris, Christopher, Shults, Katherine, Danker, Elizabeth, University of Central Florida
Abstract / Description: Nightgaze is a feature length visual mixtape created by May Santiago to fulfill the Masters of Fine Arts program at UCF. The mixtape is a study of autobigraphical depression in metaphorical visual tracks. Originally conceived as an experimental narrative, it has evolved into a form of essayistic distance within a narrative framework with experimental deviations. This thesis tracks the project from its original conception, through the pre-production, production, and post-production processes....
Show moreNightgaze is a feature length visual mixtape created by May Santiago to fulfill the Masters of Fine Arts program at UCF. The mixtape is a study of autobigraphical depression in metaphorical visual tracks. Originally conceived as an experimental narrative, it has evolved into a form of essayistic distance within a narrative framework with experimental deviations. This thesis tracks the project from its original conception, through the pre-production, production, and post-production processes. It also formulates a plan for marketing and distributing the project.
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Date Issued: 2016
Identifier: CFE0006497, ucf:51398
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006497

Title: BLACK FEMINIST ARTICULATIONS OF RACE AND GENDER WITHIN THE HORROR FILM GENRE.
Creator: Ortiz, Katherine M, Danker, Elizabeth, University of Central Florida
Abstract / Description: The intent of this paper is to explore a black feminist perspective within the film horror genre. A black feminist perspective investigates how black women are portrayed within cinematic horror. It serves as a method to further articulate the particularities of race and gender within cinema. If we leave the cinematic space without a structural model of intervention, then we are left with film that remains unchallenged for ostracizing black women. The paper argues that black women become...
Show moreThe intent of this paper is to explore a black feminist perspective within the film horror genre. A black feminist perspective investigates how black women are portrayed within cinematic horror. It serves as a method to further articulate the particularities of race and gender within cinema. If we leave the cinematic space without a structural model of intervention, then we are left with film that remains unchallenged for ostracizing black women. The paper argues that black women become articulated through themes of motherhood, death, and sexuality.
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Date Issued: 2019
Identifier: CFH2000505, ucf:45682
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH2000505

Title: OF MARTYRS AND MINSTRELS.
Creator: Coleman, Trevon J, Poindexter, Carla, University of Central Florida
Abstract / Description: "Our search for understanding in matters of race automatically incline us toward blackness, although that is not where these answers lie." - Nell Irvin Painter. Over the course of, and in partial fulfillment for, the degree of Bachelor of Fine Arts in Studio Art and the degree of Bachelor of Fine Arts in Film Production, I have produced a multimedia body of work. I made this body of work as a reflection and result of my processes and studies, and as a method to examine perception, and...
Show more"Our search for understanding in matters of race automatically incline us toward blackness, although that is not where these answers lie." - Nell Irvin Painter. Over the course of, and in partial fulfillment for, the degree of Bachelor of Fine Arts in Studio Art and the degree of Bachelor of Fine Arts in Film Production, I have produced a multimedia body of work. I made this body of work as a reflection and result of my processes and studies, and as a method to examine perception, and representation in relation to identity. This body of work combines drawing, painting, printmaking, ceramics, and filmmaking; utilizing each medium to scrutinize language, particularly that of the terms "black" and "white" and their cultural relationships to each other. Through this practice, my work evolved into a study of expectation, as situated through language, and conventional understanding. This work adds to the discourse on spaces and expectations of marginalized communities, art, and continues the tradition of the artists' practice as a form of research. I also position this work in relation to current mass culture iconography while using a distancing effect to explore concepts of martyrdom and minstrelsy as reflections of expectations on my own experience.
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Date Issued: 2019
Identifier: CFH2000510, ucf:45677
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH2000510

Title: DEPICTIONS OF WOMEN IN STALINIST SOVET FILM, 1934-1953.
Creator: Weeks, Andrew, Solonari, Vladimir, University of Central Florida
Abstract / Description: Popular films in the Soviet Union were the products of the implementation of propagandistic messages into storylines that were both ideologically and aesthetically consistent with of the interests of the State and Party apparatuses. Beginning in the 1930s, following declaration of the doctrine on socialist realism as the official form of cultural production, Soviet authorities and filmmakers tailored films to the circumstances in the USSR at that given moment in order to influence and shape...
Show morePopular films in the Soviet Union were the products of the implementation of propagandistic messages into storylines that were both ideologically and aesthetically consistent with of the interests of the State and Party apparatuses. Beginning in the 1930s, following declaration of the doctrine on socialist realism as the official form of cultural production, Soviet authorities and filmmakers tailored films to the circumstances in the USSR at that given moment in order to influence and shape popular opinion; however, this often resulted in inconsistent and outright contradictory messages. Given the transformation that gender relations were undergoing in the early stages of development, one area that was particularly problematic in Soviet cinema was the portrayals of women. Focusing primarily on the Stalinist period of the Soviet History (1934-1953), I plan to look at the ways in which women were portrayed in popular Soviet cinema and specifically the ways in which these presentations shifted before, during, and after World War II.
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Date Issued: 2012
Identifier: CFH0004312, ucf:45052
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH0004312

Title: EFFECT OF PRESSURE GRADIENT AND WAKE ON ENDWALL FILM COOLING EFFECTIVENESS.
Creator: Rodriguez, Sylvette, Kapat, Jayanta, University of Central Florida
Abstract / Description: Endwall film cooling is a necessity in modern gas turbines for safe and reliable operation. Performance of endwall film cooling is strongly influenced by the hot gas flow field, among other factors. For example, aerodynamic design determines secondary flow vortices such as passage vortices and corner vortices in the endwall region. Moreover blockage presented by the leading edge of the airfoil subjects the incoming flow to a stagnating pressure gradient leading to roll-up of the approaching...
Show moreEndwall film cooling is a necessity in modern gas turbines for safe and reliable operation. Performance of endwall film cooling is strongly influenced by the hot gas flow field, among other factors. For example, aerodynamic design determines secondary flow vortices such as passage vortices and corner vortices in the endwall region. Moreover blockage presented by the leading edge of the airfoil subjects the incoming flow to a stagnating pressure gradient leading to roll-up of the approaching boundary layer and horseshoe vortices. In addition, for a number of heavy frame power generation gas turbines that use cannular combustors, the hot and turbulent gases exiting from the combustor are delivered to the first stage vane through transition ducts. Wakes induced by walls separating adjacent transition ducts located upstream of first row vanes also influence the entering main gas flow field. Furthermore, as hot gas enters vane passages, it accelerates around the vane airfoils. This flow acceleration causes significant streamline curvature and impacts lateral spreading endwall coolant films. Thus endwall flow field, especially those in utility gas turbines with cannular combustors, is quite complicated in the presence of vortices, wakes and strong favorable pressure gradient with resulting flow acceleration. These flow features can seriously impact film cooling performance and make difficult the prediction of film cooling in endwall. This study investigates endwall film cooling under the influence of pressure gradient effects due to stagnation region of an axisymmetric airfoil and in mainstream favorable pressure gradient. It also investigates the impact of wake on endwall film cooling near the stagnation region of an airfoil. The investigation consists of experimental testing and numerical simulation. Endwall film cooling effectiveness is investigated near the stagnation region on an airfoil by placing an axisymmetric airfoil downstream of a single row of inclined cylindrical holes. The holes are inclined at 35° with a length-to-diameter ratio of 7.5 and pitch-to-diameter ratio of 3. The ratio of leading edge radius to hole diameter and the ratio of maximum airfoil thickness to hole diameter are 6 and 20 respectively. The distance of the leading edge of the airfoil is varied along the streamwise direction to simulate the different film cooling rows preceding the leading edge of the airfoil. Wake effects are induced by placing a rectangular plate upstream of the injection point where the ratio of plate thickness to hole diameter is 6.4, and its distance is also varied to investigate the impact of strong and mild wake on endwall film cooling effectiveness. Blowing ratio ranged from 0.5 to 1.5. Film cooling effectiveness is also investigated under the presence of mainstream pressure gradient with converging main flow streamlines. The streamwise pressure distribution is attained by placing side inserts into the mainstream. The results are presented for five holes of staggered inclined cylindrical holes. The inclination angle is 30° and the tests were conducted at two Reynolds number, 5000 and 8000. Numerical analysis is employed to aid the understanding of the mainstream and coolant flow interaction. The solution of the computational domain is performed using FLUENT software package from Fluent, Inc. The use of second order schemes were used in this study to provide the highest accuracy available. This study employed the Realizable κ-ε model with enhance wall treatment for all its cases. Endwall temperature distribution is measured using Temperature Sensitive Paint (TSP) technique and film cooling effectiveness is calculated from the measurements and compared against numerical predictions. Results show that the characteristics of average film effectiveness near the stagnation region do not change drastically. However, as the blowing ratio is increased jet to jet interaction is enhanced due to higher jet spreading resulting in higher jet coverage. In the presence of wake, mixing of the jet with the mainstream is enhanced particularly for low M. The velocity deficit created by the wake forms a pair of vortices offset from the wake centerline. These vortices lift the jet off the wall promoting the interaction of the jet with the mainstream resulting in a lower effectiveness. The jet interaction with the mainstream causes the jet to lose its cooling capabilities more rapidly which leads to a more sudden decay in film effectiveness. When film is discharged into accelerating main flow with converging streamlines, row-to-row coolant flow rate is not uniform leading to varying blowing ratios and cooling performance. Jet to jet interaction is reduced and jet lift off is observed for rows with high blowing ratio resulting in lower effectiveness.
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Date Issued: 2008
Identifier: CFE0002425, ucf:47769
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002425

Title: Blivits!.
Creator: Sutter, Charles, Mills, Lisa, Stoeckl, Ula, Schlow, Stephen, Shults, Katherine, University of Central Florida
Abstract / Description: Blivits! is a feature-length documentary produced, written, and directed by Charles Sutter in pursuit of the Master of Fine Arts in Film (&) Digital Media from the University of Central Florida. This thesis examines the ethical questions of making a documentary in the digital era.In accordance with the restrictions of the program's guidelines, this film was completed a budget of less than $50,000. The film was shot over 18 days, in various locations up and down the east coast of the United...
Show moreBlivits! is a feature-length documentary produced, written, and directed by Charles Sutter in pursuit of the Master of Fine Arts in Film (&) Digital Media from the University of Central Florida. This thesis examines the ethical questions of making a documentary in the digital era.In accordance with the restrictions of the program's guidelines, this film was completed a budget of less than $50,000. The film was shot over 18 days, in various locations up and down the east coast of the United States. This thesis is the record of Blivits!'s journey through development until completion of picture lock.
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Date Issued: 2014
Identifier: CFE0005720, ucf:50140
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005720

Title: EFFECT OF SODIUM AND ABSORBER THICKNESS ON CIGS2 THIN FILM SOLAR CELLS.
Creator: Vasekar, Parag, Dhere, Neelkanth, University of Central Florida
Abstract / Description: Chalcopyrites are important contenders among solar cell technologies due to direct band gap and higher absorption coefficient. CuIn1-xGaxS2 (CIGS2) thin-film solar cells are of interest for space power applications because of near optimum bandgap of 1.5 eV for AM0 solar radiation outside the earth's atmosphere. The record efficiency of 11.99% has been achieved on a 2.7 µm CIGS2 thin film prepared by sulfurization at FSEC PV Materials Laboratory. Since CIGS2 films are typically grown...
Show moreChalcopyrites are important contenders among solar cell technologies due to direct band gap and higher absorption coefficient. CuIn1-xGaxS2 (CIGS2) thin-film solar cells are of interest for space power applications because of near optimum bandgap of 1.5 eV for AM0 solar radiation outside the earth's atmosphere. The record efficiency of 11.99% has been achieved on a 2.7 µm CIGS2 thin film prepared by sulfurization at FSEC PV Materials Laboratory. Since CIGS2 films are typically grown in copper-rich regime, excess cuprous sulfide which helps in the formation of CIGS2 is etched away. This makes CIGS2 nearly stoichiometric. However, it is difficult to adjust Cu/(In+Ga) ratio in the desired range 0.7 to 0.9. A solution to this is to grow CIGS2 in copper-deficient regime. However, it is difficult to produce device quality films without the support of cuprous sulfide. This work is one of the very few attempts in which device quality films were formed even in copper-deficient regimes with the addition of sodium. Also, recent research endeavors in the CIGS2 thin film photovoltaic community are directed towards thinner films because the availability and cost of indium as well as gallium are limiting factors. The required amounts of rare and expensive metals can be lowered by using thinner films. The solar cell performance in the thinner absorbers deteriorates due to the detrimental effects of the larger fraction of grain boundaries. It is essential to hasten the grain growth through coalescence to retain high efficiency in devices prepared using thinner films. Large grain size that is desirable for obtaining high efficiency cells can be achieved by creating conditions of fewer nucleation sites and large mobilities of the deposited species. Sodium has been found to play a vital role by enhancing the atomic mobility and improving the coalescence even in thinner films. This work presents a study of morphology and device properties of CIGS2 thin films with Copper-deficient absorbers after minute amounts of sodium are introduced on the Mo-coated substrate in the form of sodium fluoride layer prior to sputter deposition of copper-gallium alloy and indium. Photovoltaic conversion efficiency of 9.15% was obtained for copper-deficient absorbers. In a parallel set of experiments, copper-rich precursors were used to produce absorbers of lower thickness range values and the parameters were optimized. Photovoltaic conversion efficiency of 10.12% was obtained for an absorber of thickness 1.5 µm and an efficiency of 9.62% was obtained for an absorber of thickness 1.2 µm.
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Date Issued: 2009
Identifier: CFE0002525, ucf:47671
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002525

Title: THE ATTIC DOOR: A FEATURE LENGTH MOTION PICTURE.
Creator: Daneau, Daniel, Finch, Randy, University of Central Florida
Abstract / Description: THE ATTIC DOOR is the feature-length film co-written and directed by Danny Daneau while pursuing a Master of Fine Arts at the University of Central Florida. Many challenges had to be met to produce a feature-length motion picture utilizing digital technology on an ultra-low budget as part of a graduate education. Beyond gaining a profound understanding of the physical, financial, and emotional strength it takes to complete a feature-length motion picture, Daneau experienced the creative...
Show moreTHE ATTIC DOOR is the feature-length film co-written and directed by Danny Daneau while pursuing a Master of Fine Arts at the University of Central Florida. Many challenges had to be met to produce a feature-length motion picture utilizing digital technology on an ultra-low budget as part of a graduate education. Beyond gaining a profound understanding of the physical, financial, and emotional strength it takes to complete a feature-length motion picture, Daneau experienced the creative challenges that all filmmakers must meet when applying the principles of filmmaking theory to an actual work of self-expression. The production process for an original narrative film under the guidelines established by the university has pushed him to make a motion picture that is both a highly personal work of film art and evidence of the educational journey he has taken for the past three years.
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Date Issued: 2008
Identifier: CFE0002308, ucf:47832
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002308

Title: Freestanding Holey Thin Films for Renewable Energy Storage.
Creator: Marcus, Kyle, Yang, Yang, Zhai, Lei, Dong, Yajie, University of Central Florida
Abstract / Description: The rapid advancement of portable and wearable technologies has challenged research to improve upon current renewable battery energy storage systems. By using nanotechnology, it is now possible to access more of the energy storage theoretical values that have been unattainable thus far. We have developed a method to create freestanding holey thin films through combinations of electrochemical and chemical vapor deposition (CVD) techniques to be used in renewable energy storage systems....
Show moreThe rapid advancement of portable and wearable technologies has challenged research to improve upon current renewable battery energy storage systems. By using nanotechnology, it is now possible to access more of the energy storage theoretical values that have been unattainable thus far. We have developed a method to create freestanding holey thin films through combinations of electrochemical and chemical vapor deposition (CVD) techniques to be used in renewable energy storage systems. Freestanding thin films promote excellent contact between the residual conductive framework and any functionalized active component specific to the designed material. Without requiring any other additives, the as-prepared freestanding thin films can be mechanically and chemically tuned to allow for use in a wide range of applications. Incorporation of micro- and nano-sized holey structures dramatically enhances the electrochemically active surface area, which is essential for facilitating appropriate reactions in conversion type energy storage systems. Combining the freestanding and holey components with an active layer effectively enhances conductivity and reduces the electron transfer distance at the electrode-electrolyte interface. Herein, two separately designed freestanding holey thin films were successfully used as cathode materials for lithium-sulfur battery (Li-S) and magnesium-ion battery (MIB) energy storage systems.
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Date Issued: 2017
Identifier: CFE0007127, ucf:52304
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0007127

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