We work with combustion faculty in Mechanical Engineering (ME) and Aerospace and Engineering Mechanics (AEM). Research on supercricial fuel-air mixing at diesel conditions is a joint effort with Prof. Bittle and Prof. Cheng. Dr. Agrawal and Dr. Bittle are also working together on a DOE project on co-optimization of fuels and engines for Advanced Compression Ignition (ACI) Engines. Dr. Uddi is a collaborator on the rotating detonation engine project.
John is originally from Prattville, Alabama, and began attending the University of Alabama in the fall of 2008, majoring in mechanical engineering. Kornegay is now a PhD candidate at the University. He is studying passive mitigation techniques for thermoacoustic instabilities through the utilization of an annular shaped porous insert with a particle image velocimetry diagnostics technique (PIV). He is supported on a NASA project for research involving lean premixed combustion and lean direction injection combustion concepts for gas turbines.
James Allen is a current Ph.D. student focusing on passive mitigation of thermoacoutic instabilities using porous inert media. He is expecting to graduate in the summer of 2017. He received a Bachelor’s degree from Rose-Hulman Institute of Technology in Mechanical Engineering. At The University of Alabama, James has primarily focused on swirl-stabilized lean premixed (LPM) combustion simulating power generation turbines, but recently has transitioned to liquid direct injection (LDI). In both combustor designs, James has employed dynamic pressure measurements simultaneously with time-resolved OH* chemiluminescence and planar laser induced fluorescence (PLIF) techniques.
Danny Depperschmidt joined UA graduate program in mechanical engineering in Fall 2014, and focuses on combustion research. He is originally from Flower Mound, TX, and earned his undergraduate degree from UA in May of 2014. Danny has worked on projects focused on the mitigation of thermoacoustic instabilities via the implementation of porous inserts in gas turbine engines. His current research deals with flow diagnostics in a rotating detonation engine. Currently, he is Graduate Research Scholars Program Fellow funded by Alabama Experimental Program to Stimulate Competitive Research (AL-EPSCoR). Danny is actively involved with UA’s club rugby team, for which he played for five years and is now a volunteer assistant coach.
Taber started Master's program as Alabama License Tag Fellow in the department of Mechanical Engineering in Fall 2015. After one year of graduate school, he switched to PhD program and is now specializing on rainbow schlieren deflectometry (RSD) measurements in supercritical diesel sprays. Taber earned his Bachelor’s degree in Mechanical Engineering with a double major in Applied Mathematics at the University of Alabama. At the end of Taber’s junior year as an undergraduate, he became a research assistant in combustion laboratories working on fuel flexible liquid fuel atomization at elevated pressures using the flow blurring injector. It was during this time that Taber became interested in furthering his education, thus leading him to pursue a graduate degree.
Jonathan joined the PhD program in Fall 2016 as UA's Graduate Council Fellow in the Mechanical Engineering department studying combustion. A Dayton, Ohio native, Jonathan attended the University of Dayton, earning his Bachelor of Mechanical Engineering with an Aerospace Concentration in 2015. During undergraduate study, he worked as a research assistant at the Air Force Research Laboratory (AFRL) at Wright-Patterson Air Force Base. While there, Jonathan conducted CFD analysis for various gas turbine combustor designs before accepting the opportunity to support similar experimental efforts. These experiences led Jonathan to seek graduate study at University of Alabama, where he is currently researching Pressure Gain Combustion in a Rotating Detonation Engine (RDE).
Nathan Vardaman is from Huntsville, AL. He received Bachelor’s of Science degree in mechanical engineering from The University of Alabama in spring 2016, and joined the Master's program in Fall 2016. As undergraduate, he worked on the EcoCAR3 team, did undergraduate research on fuel injectors, and competed for the university’s track and field team. Nathan's graduate research focuses on examining the flow-blurring atomization technique in fuel injectors, including computational fluid dynamics (CFD) analysis and experimental research on it.
Yasin joined the Combustion Lab as a Master’s student in Fall 2016. He graduated as Mechanical Engineer from Ege University, Turkey and later worked as an R&D Engineer for a 3D printer project at Volturk Technology for a one year. His research focus is on combustion and fluid flow, computational heat transfer, and multiphase flow. Upon completion of his graduate studies in the U.S, he is planning to return to Turkey to work for the Turkish Petroleum Corporation, with the goal to find more efficient, environmentally safe forms of energy production. Aside from engineering, he likes sports especially fitness and trekking. He enjoys reading Manga of all genres especially shounen and martial arts.
Cooper Welch, a native of McKinney, Texas, graduated in December of 2016 with a B.S. in mechanical engineering from UA, During his time as an undergrad, he completed a manufacturing internship at Grover Corporation, a design internship at Peterbilt Motors Company, and participated actively in Alpha Kappa Psi professional business fraternity. Cooper is working on the rotating detonation engine research project since the Fall of 2016 and will continue the research for his graduate thesis. Cooper is interested in laser diagnostics in combustion and enjoys playing sports and reading in his free time.
Zack Ayers is an undergraduate senior, majoring in mechanical engineering with a minor in aerospace engineering. He is expected to graduate in May, 2017. His current research focuses on proving the effectiveness of novel fuel injection techniques in reducing harmful emissions and improving combustion system efficiency. This research has a most direct application for industrial boilers and combustors, but also holds potential for gas turbines and other internal combustion engines. Zack presented his research findings in a conference publication at the 9th National Combustion Meeting in Salt Lake City in May of 2015. After receiving BS degree in May 2017, Zack plans to pursue his PhD degree in the combustion field.
Rob Miller is an Undergraduate Research Assistant with the Rotating Detonation Engine research group at the University of Alabama. He is experienced in design and fabrication of various engineering systems. He is a 2011 graduate of Shelton State Community College Machine Tool Technologies and Computerized Numerical Control programs. He is interested in combustion and mechatronics systems. Rob plans to join Master's program after completing his BS in mechanical engineering in Spring 2017.
Mitch Johnson. is a senior Mechanical Engineering student at UA, and has been working in the combustion lab since freshman year. He has been involved on project on liquid fuel atomization using flow-blurring injector. He has also contributed to the project on thermoacoustic instability in lean premixed combustion systems.
Zack Harris is an undergraduate student in mechanical engineering. He started research work in summer 2016, when he developed a software code to simulate the thermodynamic performance of a engine concept with variable stroke length, and Atkinson cycle. After completing BS in May 2017, Zack plans to join the PhD program in Fall 2017. He is interested in research on internal combustion engines, and plan to work on co-optima project investigating combustion of conventional and biofuel blends in a constant pressure flow rig using high-speed optical diagnostics techniques.
- Yonas Niguse, Fuel Flexible Clean Combustion of Liquid Fuels by a Novel Twin-fluid Atomizer, Summer 2015, Current Position: Assistant Professor, University of Louisiana, Lafayette, LA.
- Jiang Lulin, Fall 2014, Investigation of Atomization Mechanisms and Flame Structure of a Twin-Fluid Injector for Different Liquid Fuels. Current position: Assistant Professor (tenure track), University of Louisiana, Lafayette, LA.
- Joseph Meadows, Summer 2014, Flow Diagnostics of Swirl Stabilized Combustion Without and With Porous Inert Media For Mitigation of Combustion Noise and Thermo-Acoustic Instabilities. Current Position: Siemens, Charlotte, NC.
- Troy J. Dent, Jr., Spring 2012, Meso-scale Power Generation Incorporating Heat Recirculation, Porous Inert Media, and Thermoelectric Modules.
- Tanisha Booker (co-adviser with M. Ashford), Fall 2011, Characterization of Hydrogen Combustion in a Direct Injected Constant Volume Combustion Chamber Using Rainbow Schlieren Deflectometry, Technical Project Manager, E34 Expeditionary Warfare Systems Development, NSWC-PCD.
- Benjamin Simmons, Summer 2011 Atomization and Combustion of Liquid Biofuels, Current Position: Instructor/Assistant Professor, Department of Mech. Eng., South Dakota School of Mines, SD.
- Daniel Sequera, Fall 2010, Reduction of Combustion Noise and Instabilities using Porous Inert Material with a Swirl-Stabilized Burner, Current position: Baker Oil, Houston, TX.
- Heena Panchasara, August 2010, Spray Characteristics and Combustion Performance of Unheated and Preheated Liquid Biofuels, Central Queensland University, Melbourne Campus, Australia.
- Pankaj Kolhe, August 2009, Statistical Tomography for Scalar Turbulence Measurements using Line of Sight Optical Techniques, Current Position: Assistant Professor, Indian Institute of Technology, Hyderabad.
- Vijaykant Sadasivuni, Spring 2008, Meso-scale Combustion of Liquid Fuels using Porous Inert Media, Current Position: Engineer, Air Liquide, Houston, Tx.
- Rajani Satti, November 2006, Flow Structure of Low-Density Gas Jets and Gas Jet Diffusion Flames. Current Position: Baker Oil, Houston, TX.
- Timothy Marbach, July 2005, Meso-scale Porous Media Heat Recirculating Combustor, Current Position: Associate Professor, California State University, Sacramento, CA.
- Donald M. Wicksall, August 2004, Lean Premixed Swirl-Stabilized Combustion of Gaseous Alternative Fuels. Current Position: Rolls Royce, Indianapolis.
- Kasyap Pasumarthi, May 2004, Buoyancy Effects on Flow Structure and Instability of Low-Density Gas Jets, with R. Parthasarathy.
- Khalid Al-Ammar, 1998, Scalar Measurements and Analysis of Hydrogen Gas-Jet Diffusion Flames in Normal and Microgravity, with S.R. Gollahalli. Current position: Associate Professor of Mechanical Engineering, King Saud University, Riyadh, Saudi Arabia.
- Nelson K. Butuk, 1997, Fluid Flow Diagnostics Using Rainbow Schlieren Imaging and Computer Tomography, with S.R. Gollahalli.
- Irish Hu, 1994, A Presumed and Synthesized Probability Density Function Method for Non-Premixed Turbulent Reacting Flow Calculations, with T.T. Yang.
- John Kornegay, non-thesis, May 2016
- James Allen, non-thesis, May 2016
- Dan Mitchell, Full Flow Field Measurements Correlated to Acoustic Wave Propagations using High Speed Rainbow Schlieren Deflectometry, December 2013.
- Yonas Niguse, non-thesis, May 2014.
- Lulin Jiang, non-thesis, May 2013.
- Joseph Meadows, May 2013.
- L. Justin Williams, Passive Mitigation of Combustion Noise and Instability using Porous Inert Media in an Elevated Pressure Test Rig, May 2012.
- Allison Copus, non-thesis, August 2011.
- Zack Smith, Passive Control of Combustion Noise and Thermo-Acoustic Instability with Porous Inert Media, May 2011.
- Tanisha Booker, non-thesis, August 2010.
- Troy Dent, non-thesis, August 2010.
- Benjamin Simmons, non-thesis December 2009,
- Seydou Diop, December 2008, A Parametric Study of Jet-Wall Interactions for Compressed Hydrogen Gas Leak Scenarios.
- Pankaj Kolhe, non-thesis, May 2008
- Daniel Sequera, May 2007, Fuel Composition Effects in Low Swirl Combustion Systems
- Cristina Dumitrescu, December 2006, Experimental Study of Combustion of Gaseous and Liquid Fuels Using Porous Inert Media with Heat Recirculation.
- Vijaykant Sadasivuni, November 2004, Effect of Porous Media Configuration on Pre-Vaporization, Pre-Mixing and Combustion of Kerosene
- Eric Newburn, December 2004, Lean Premixed Combustion of Gaseous and Liquid Fuels using Heat Recirculation Through Annular Porous Media
- Sandeep Alavandi, November 2004, Effects of Fuel Composition on Combustion using Porous Inert Media.
- Tommy S. Wong, October, 2004, Scalar Measurements in Flames using High-Speed Rainbow Schlieren Deflectometry
- B. Sedat Yildirim, September, 2004, Concentration Measurements in a Momentum-Dominated Low-Density Jet
- Ryan Heatly, Spring, 2004, Combustion of Pre-Vaporized, Premixed Kerosene Fuel using Porous Inert Media
- Peter Leptuch, 2002, Measurements of Buoyancy Effects in Momentum-Dominated Helium Jets using High Speed Rainbow Schlieren Deflectometry
- Tze-Wing Yep, 2001, Scalar Measurements and Analysis of Helium Jets in Earth Gravity and Microgravity using Rainbow Schlieren Deflectometry
- Kasyap Pasumarthi, 2000, Full Field Scalar Measurements in a Pulsating Helium Jet using Rainbow Schlieren Deflectometry
- Mathew Jackson, 1999, Active Control of Combustion for Optimal Performance
- Burt Albers, 1999, Schlieren Analysis of Time-Dependent Laminar and Transitional Gas-Jet Diffusion Flames
- Anil K. Shenoy, 1998, Effects of Non-unity Lewis Number and Buoyancy in Hydrogen Jet Diffusion Flames
- Alhendro Tinneti, 1998, Flow Experiments in the Annular Diffuser and Contraction Passages of an Intercooler System for Gas Turbines
- Steve M. Cherry, 1997, Scaling of Buoyancy Effects in Hydrogen Gas Jet Diffusion Flames using Rainbow Schlieren Deflectometry
- Yanming Gao, 1997, Aerodynamic Optimization of Axisymmetric Annular Flow Passages
- Hongfeng Bi, 1995, Autoignition of Natural Gas in Diesel Environments
- S. Krishnan, 1992, Use of Subdomains for Inverse Problems in Branching Flow Passages.