John Leylegian, PHD

John Leylegian, PHD

Assistant Professor

Department : Mechanical Engineering

Email : john.leylegian@manhattan.edu

Phone : 718-862-7279

Office : RLC 207A

Education

PHD, Princeton University
MA, Princeton University
ME, Princeton University
BE, Cooper Union

About

Dr. Leylegian is currently an Assistant Professor in the Mechanical Engineering Department at Manhattan College. From August 2008 to August 2009, he held the title of Visiting Assistant Professor. From January-August 2008, he was an Adjunct Assistant Professor. His teaching responsibilities have included classes primarily focused on the thermal-fluid sciences, computer programming, and communication.

Dr. Leylegian was employed at ATK Tactical Propulsion and Controls New York Operations (Formerly ATK GASL, Allied Aerospace GASL Division, and GASL, Inc.) from April 2000 to September 2008, and held the title of Senior Scientist in the Aerodynamics and Propulsion Analysis Department. He served as Technical Lead for programs involving the use of kerosene-based fuels for hypersonic cooling applications and fuel cell-based power generation. He also participated in a NASA-funded research project using low-temperature plasmas to reduce NOx emissions from jet engines. He was involved in the coordination of fuels and energy-related projects at ATK TP&C, and was routinely consulted by the technical staff of ATK TP&C and other ATK companies on the design, testing, and analysis of chemically reacting systems. While at ATK, Dr. Leylegian served as Technical Lead for two programs involving the development of turbine-based combined cycle (TBCC) engine technology. Other efforts have included the development of supersonic and hypersonic propulsion systems for vehicles in support of projects funded by NASA, DARPA, the U.S. Air Force, and the U.S. Army. He has also worked on various trade studies, on projects including liquid fuel heating and delivery systems for various NASA test facilities and fuel selection for next-generation air-breathing munitions design. Other projects in which he participated include the development and upgrade of various analysis tools used at ATK GASL and safety reviews of GASL wind tunnel facility systems, including hydrogen, silane, and liquid jet fuel delivery systems.

Research

Dr. Leylegian’s main interest is in combustion, specifically in the high-temperature chemistry of reacting flows. He has performed experimental and computational studies on flame environments, from simple flow fields to high-speed supersonic combustion ramjet (SCRAMJET) combustors. He has also been involved in studies of fuel reforming for engine cooling and fuel cell applications, and novel energy conversion technologies. He is also well-versed in the numerical simulations of these phenomena, using industry-standard codes.

Current Research:

Reduction of Chemical Kinetic Models for Engine Simulations
Modeling of Endothermic Fuel Reforming for Regeneratively-Cooled Scramjet Engines
Effects of Pulsatile Flow on Pressure Drop

Professional Experience

Senior Scientist, Aerodynamics and Propulsion Analysis, ATK Tactical Propulsion and Controls, 2000-2008.

Publications & Professional Activities

Peer-Reviewed Journal Articles:

  • J. C. Leylegian, T. V. Paul, and V. A. Tulino, “A Method of Kinetic Model Reduction for CFD Applications,” AIAA Journal of Propulsion and Power, Vol. 29, No. 5, pp. 1231-1243 (2013). doi: 10.2514/1.B34805.
  • J. A. Spero and J. C. Leylegian, “Development of a Kinetic Model to Describe the Reforming of Logistical Fuels,” AIAA Journal of Propulsion and Power, Vol. 29, No. 4, pp. 757-763 (2013). doi: 10.2514/1.B34800
  • J. C. Leylegian, W. Chinitz, G. Benel, and M. J. Castaldi, “An Investigation of Short Contact Time Reactors for Regeneratively-Cooled Hypersonic Vehicles,” AIAA Journal of Propulsion and Power, Vol. 28, No. 2 pp 412-422 (2012). doi: 10.2514/1.B34118
  • J. C. Leylegian, “Soot Formation in Aerodynamically-Strained Methane- Air and Ethylene -Air Diffusion Flames with Chloromethane Addition,” Combustion and Flame, Vol. 152 No. 1-2 pp. 144-153 (2008). doi:10.1016/j.combustflame.2007.07.015
  • J. C. Leylegian, H. Y. Sun, and C. K. Law, “Laminar Flame Speeds and Kinetic Modeling of Hydrogen/Chlorine Combustion,” Combustion and Flame, Vol. 143, pp. 199-210 (2005). doi:10.1016/j.combustflame.2005.06.002
  • J. C. Leylegian, C. K. Law, and H. Wang, “Laminar Flame Speeds and Oxidation Kinetics of Tetrachloromethane,” Proceedings of the Combustion Institute, Vol. 27, The Combustion Institute, Pittsburgh, PA, pp. 529-536 (1998). doi:10.1016/S0082-0784(98)80443-8 
  • J. C. Leylegian, D. L. Zhu, C. K. Law, and H. Wang, “Experiments and Numerical Simulation on the Laminar Flame Speeds of Dichloromethane and Trichloromethane,” Combustion and Flame, Vol. 114, No. 3-4 pp. 285-293 (1998). doi:10.1016/S0010-2180(97)00326-X

Peer-Reviewed Meeting Papers:

  • J. C. Leylegian and M. H. Naraghi, “Design of Experiments, an Integral Part of a Thermal/Fluids Laboratory Course,” To be presented at the 2012 International Mechanical Engineering Congress, Houston, TX, November 2012.
  • J. C. Leylegian, M. H. Naraghi, S. Montoni, M. Kaszczak Jr., and V. Garafolo, “Design of Experiment to Evaluate Thermal Resistance of PTAC Unit,” Paper IMECE2011-65030. Presented at the 2011 International Mechanical Engineering Congress, Denver, CO, November 2011.

Meeting Papers:

  • J. A. Spero and J. C. Leylegian, “Development of a Chemical Kinetic Model to Describe the Endothermic Reforming of Logistical Fuels.” Paper AIAA-2012-4109, presented at the 48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Atlanta, GA, July 2012.
  • J. C. Leylegian and V. A. Tulino, “Further Progress On A Kinetic Model Reduction Method for CFD Applications.” Paper AIAA-2012-4168, presented at the 48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Atlanta, GA, July 2012.
  • J. C. Leylegian and T. V. Paul, “A New Method of Chemical Kinetic Model Reduction for CFD Applications.” Paper AIAA-2011-5850, Presented at the 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, San Diego, CA, August 2011.
  • J. C. Leylegian, W. Chinitz, G. Benel and M. J. Castaldi, “Continued Investigation of Short Contact Time Reactors for Regeneratively-Cooled Hypersonic Vehicles.” Paper AIAA-2010-6791, Presented at the 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Nashville, TN, July 2010.
  • A. A. Sklar, C. Nicholson, D. Cresci, and J. Leylegian, “Examining Test Medium Effects of an Axisymmetric Dual Mode Scramjet Engine in a Single Freejet Engine Test Facility.” In the JANNAF 43rd CS/31st APS/25th PSHS Subcommittee Joint Meeting, La Jolla, CA, CD-ROM, December 2009.
  • M. J. Castaldi, J. C. Leylegian, W. Chinitz, and D. P. Modroukas, “Development of an Endothermic Fuel Platform for Regeneratively-Cooled Hypersonic Vehicles.” Paper AIAA 2006-4403, Presented at the 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Sacramento, CA, July 2006.
  • J. C. Leylegian, J. S. Tyll, J. Helgeson, C. J. Nicholson, C.-Y. Tsai, S. P. Gregory, and D. J. Lewis, “Testing and Analysis of a Solid-Fueled Dual-Mode Scramjet Engine.” In the JANNAF 40th CS/28th APS/22nd PSHS/4th MSS Subcommittee Joint Meeting, Charleston, SC, CD-ROM, June 2005.
  • R. O. Foelsche, J. C. Leylegian, A. A. Betti, R. S. M. Chue, F. Marconi, S. A. Beckel, J. S. Tyll, R. A. Charletta, and R. J. Bakos, “Progress on the Development of a Freeflight Atmospheric Scramjet Test Technique,” Paper AIAA 2005-3297. Presented at the AIAA/CIRA 13th International Space Planes and Hypersonics Systems and Technologies Conference, Capua, Italy, May 2005.
  • J. C. Leylegian, R. Chue, R. Stone, D. Cresci, J. Ararat, and J. S. Tyll, “Design, Testing, and Analysis of a Dual-Mode Scramjet Combustor For Use in a Gun-Launched Scramjet Flight Demonstrator.” In the JANNAF 39th CS/27th APS/21st PSHS/3rd MSS Subcommittee Joint Meeting, Colorado Springs, CO, CD-ROM, December 2003.

Work-in-Progress Presentations:

  • J. C. Leylegian, M. J. Castaldi, W. Chinitz, G. Benel, C. J. Nicholson, N. McLaughlin, and G. Papadopoulos, “Use of Short Contact Time Catalytic Reactors in the Pyrolytic Reforming of Logistical Fuels.” Work in Progress Poster Presented at the 32nd International Symposium on Combustion, McGill University, Montréal, QC, Canada, August 2008.
  • J. C. Leylegian, H. Sun, and C. K. Law, “Experimental Determination of Laminar Flame Speeds and Kinetic Modeling of Hydrogen/Chlorine Combustion.” Presented at the 2005 Joint Technical Meeting of the United States Sections of the Combustion Institute, Philadelphia, PA, March 2005.

Patents:

  • T. R. Smith, A. M. Espinosa, D. J. Farrell, A. Robertson, J. C. Leylegian, J. S. Tyll, F. Girlea, J. A. Alifano, and R. S. M. Chue, “Hypersonic Inlet Systems and Methods,” U. S. Patent 8,292,217, granted October 23, 2012.
  • F. Girlea and J. C. Leylegian, “Apparatus, Systems, Methods for the Production of Hydrogen,” U.S. Patent 8,263,027, granted September 11, 2012.
  • I. K. Uzhinsky, G. K. Lund, J. C. Leylegian, F. Girlea, J. S. Tyll, L. Piper, M. Byl, and W. Chinitz, “Methods and Systems for Producing Hydrogen and Oxygen for Power Generation, and Power Source,” U.S. patent filed August 24, 2009, European patent filed April 1, 2011.
  • D. Modroukas, J. S. Tyll, J. C. Leylegian, F. Girlea, and R. Perlman, “HySPIKE Multifuel Engine,” U.S. patent filed May 13, 2009.

Honors & Awards

  • Mechanical Engineering Department Outstanding Teacher Award, 2012
  • Recipient of ATK Achievement Award, 2006
  • Recipient of one semester scholarship for graduate study at Princeton University, 1994
  • Elected to Tau Beta Pi, Pi Tau Sigma, and Sigma Xi Honor Fraternities
  • Recipient of full four-year scholarship to The Cooper Union, 1990-1994

Professional Memberships

  • American Institute of Aeronautics and Astronautics (AIAA)
    • Member of the AIAA Propellants and Combustion Technical Committee
  • The Combustion Institute
  • American Society of Mechanical Engineers
  • American Society for Engineering Education

Other

Faculty Moderatorships:

  • American Institute of Aeronautics and Astronautics (AIAA)
  • Pi Tau Sigma Mechanical Engineering Honor Fraternity

Courses Taught/Teaching

ENGS 116      Introduction to Engineering Computation
ENGS 206      Statics

MECG 516      Turbomachinery
MECG 528      Combustion Systems
MECG 612      Alternative Energy Systems
MECG 702      Compressible Flow
MECG 746      Research Project in Mechanical Engineering

MECH 230      Introductory Solid Mechanics
MECH 231      Solid Mechanics Laboratory
MECH 402      Senior Capstone Design II

MECH 405      Thermal/Fluids Laboratory

MECH 427      Selected Topics in Mechanical Engineering

LinkedIn Profile

LinkedIn Profile

Personal Website

http://home.manhattan.edu/~john.leylegian/