Publications

Publications

 

The Publications page of the Combustion and Diagnostics Laboratory (CDL) at Technion Aerospace provides a valuable collection of our research findings and scientific contributions in the field of combustion and diagnostics.

Our publications showcase the expertise and dedication of our team as we strive to advance the understanding of combustion processes, develop innovative diagnostic techniques, and contribute to the improvement of combustion systems. Explore our publications to stay informed about the latest discoveries and advancements in the field of combustion and diagnostics.

MSc Theses
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  1. Iker Laso Miqueo, “Optimization of Energy Distribution in Nanosecond-Pulsed High-Frequency Discharge Ignition,” Technion – Israel Institute of Technology, 2021.
  2. Karin Linshitz, “Combustion Flow Characterization by Tunable Diode Laser Absorption Spectroscopy of Water Molecules,” Technion – Israel Institute of Technology, 2021.
  3. Joel van der Lee, “Impact of the Injection Temperature of Liquid Fuel on the Blowout Limits in a Cavity-Based Scramjet Combustor,” Technion – Israel Institute of Technology, 2021.
PhD Theses
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  1. Galia Faingold, “Plasma Assisted Ammonia Combustion: Chemical Kinetics Modeling, Validated in a Well-stirred Plasma Reactor,” Technion – Israel Institute of Technology, 2023.
  2. Syamantak Nath, “Experimental Investigation of the Ignition Dynamics of Hypergolic Solid Fuel – Liquid Oxidizer Combinations,” Technion – Israel Institute of Technology, 2024.
  3. Omri Hamo, “A Combined Approach for Experimental and Numerical Characterization of Low Power Hall Thrusters,” Technion – Israel Institute of Technology, 2024.
  4. David Castaneda, “Theoretical Investigation of the Hypergolic Ignition in a Hybrid Rocket Motor,” Technion – Israel Institute of Technology, 2024.
Refereed papers in professional journals
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  1. L. Wermer, J.K. Lefkowitz, T. Ombrello, M.S. Bak, S. Im, “Spatiotemporal Evolution of the Plasma from Dual-pulsed Laser-induced Breakdown in an Atmospheric Air”, Plasma Sources Sci. Technol. 27, 015012, 2018.
  2. J.K. Lefkowitz, T. Ombrello, “Reduction of Flame Development Time in Nanosecond Pulsed High Frequency Discharge Ignition of Flowing Mixtures” Combust. Flame 193, 471-480, 2018.
  3. R.D. Stachler, J.K. Lefkowitz, J.S. Heyne, S.D. Stouffer, T.M. Ombrello, J.D. Miller, “The impact of residence time on ignitability and time to ignition in a toroidal jet-stirred reactor” Proc. Combust. Inst. 37, 5039-5046, 2019.
  4. J.M. Bonebrake, D.L. Blunck, J.K. Lefkowitz, T.M. Ombrello, “The Effect of Nanosecond Pulsed High Frequency Discharges on the Temperature Evolution of Ignition Kernels” Proc. Combust. Inst. 37, 5561-5568, 2019.
  5. L. Wermer, J.K. Lefkowitz, T. Ombrello, S. Im, “Ignition Enhancement by Dual-pulse Laser-induced Spark Ignition in a Lean Premixed Methane-air Flow” Proc. Combust. Inst. 37, 5604-5612, 2019.
  6. S.F. Adams, J.A. Miles, T. Ombrello, R. Brayfield, J. Lefkowitz, “The Effect of Inter-Pulse Coupling on Gas Temperature in Nanosecond-Pulsed High-Frequency Discharges” J. Phys. D Appl. Phys. 52, 355203, 2019.
  7. D. Cuppoletti, T. Ombrello, C. Carter, S. Hammack, J. Lefkowitz, “Ignition Dynamics of a Pulse Detonation Igniter in a Supersonic Cavity Flameholder” Combust. Flame 215, 376-388, 2020.
  8. L.Wermer, J.K. Lefkowitz, T. Ombrello, S.-K. Im, “Spark and flame kernel interaction with dual-pulse laser-induced spark ignition in a lean premixed methane-air flow” Energy 215, 119162, 2021.
  9. J.K. Lefkowitz, S.D. Hammack, C. Carter, T. Ombrello, “Elevated OH Production from NPHFD and its Effect on Ignition” Proc. Combust. Inst. 38, 6671-6678, 2021.
  10. G. Faingold, J.K. Lefkowitz, “A Numerical Investigation of NH3/O2/He Ignition Limits in a Non-Thermal Plasma,” Proc. Combust. Inst. 38, 6661-6669, 2021.
  11. K.C. Opacich, T. Ombrello, J.S. Heyne, J.K Lefkowitz, “Analyzing the Ignition Differences Between Conventional, Spark Discharges and Nanosecond-Pulsed High-Frequency Discharges” Proc. Combust Inst. 38, 6615-6622, 2021.
  12. G. Faingold, J.K. Lefkowitz, “Plasma reforming for enhanced ammonia-air ignition: a numerical study” Fuel Communications 12, 100070, 2022.
  13. O. Hamo, D.R. Lev, M. Rubanovich, A. Kapulkin, J. Lefkowitz, “Experimental investigation of an external discharge very low anode power (< 20 W) hall thruster.” Journal of Electric Propulsion 1, 1-22, 2022.
  14. D.A. Castaneda, S. Hassid, J. Lefkowitz, B. Natan, “Modeling Hypergolic Ignition based on Thermal Diffusion for Spherical and Cylindrical Geometries” Combustion Science and Technology, 1-18, 2022.
  15. S. Shen, I. Laso Miqueo, N. Rozin, J.K. Lefkowitz, “On Energy Distribution and Minimum Ignition Power for Ignition of Flowing Mixtures,” Proc. Combust. Inst. 39, 5487-5498, 2023.
  16. S. Nath, Iker Laso, L. Mallick, Z. Sobe, S. Koffler, B. Blumer-Ganon, E. Borzin, N. Libis, J.K. Lefkowitz, “Comprehensive Ignition Characterization of a Non-toxic Hypergolic Hybrid Rocket Propellant,” Proc. Combust. Inst. 39, 3361-3370, 2023.
  17. S. Nath, L. Mallick, J.K. Lefkowitz, “Hypergolic Ignition Response to Oxidizer Droplet Properties,” Combust. Flame 258, 113061, 2023.
  18. R. Goldin, S. Nath, J.K. Lefkowitz, B. Natan, “Hypergolic Ignition of a Kerosene-based Gel Fuel with Hydrogen Peroxide in Rocket Motors,” Int. J. Energ. Mater. Chem. Propuls. 23, 67-78, 2024.
  19. T. M. Ombrello, S.D. Hammack, C.D. Carter, K. Busby, J.K. Lefkowitz, “Scramjet Cavity Ignition Using Nanosecond-Pulsed High-Frequency Discharges,” Combust. Flame 262, 113335, 2024. 
  20. G. Faingold, R. Kabour, S. Shen, J.K. Lefkowitz, “Reforming of ammonia and ammonia-air mixtures in a homogenous plasma reactor: parametric study of hydrogen yields,” Int. J. Hydrog. Energy 73, 856-867, 2024.
  21. S. Shen, E. Rempe, W. Tybora, J.K. Lefkowitz, “Destructive inter-pulse coupling in nanosecond-pulsed high-frequency discharge ignition: Effect of hydrodynamic regimes,” Proc. Combust. Inst. 40, 105445, 2024.
  22. J. van der Lee, J.K. Lefkowitz, D. Michaels, “Strut-guided Injection of Liquid Fuel in a Supersonic Combustor,” Proc. Combust. Inst. 40, 105290, 2024.
  23. S. Zare, N. Druker, J.K. Lefkowitz, O. Askari, “Experimental and Numerical Study of Stabilized Flame in Inverse Coflow Turbulent Jet using Nanosecond Repetitively Pulsed Discharges,” Combust. Flame 266, 113515, 2024.
  24. T.S. Taneja, T. Ombrello, J. Lefkowitz, & S. Yang, “Large eddy simulation of plasma assisted ignition: Effects of pulse repetition frequency, number of pulses, and pulse energy,” Combust. Flame 267, 113574, 2024.
Refereed papers in conference proceedings
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  1. I. Laso, N. Rozin, J. Lee, J. Lefkowitz, “A New Tunnel for Ignition Research,” The 60th Israel Annual Conference on Aerospace Sciences, Tel Aviv/Technion, Israel, 2020.
  2. K. Linshitz, M. Berreby, J. Lefkowitz, “Flow characterization of arc plasma wind tunnel by laser absorption spectroscopy of nitric oxide and water molecules”, The 60th Israel Annual Conference on Aerospace Sciences, Tel Aviv/Technion, Israel, 2020.
  3. S. Nath, M. Skrynychenko, J. Lefkowitz, “Drop-Test Facility for Studying Ignition Characteristics of Hypergolic Solid Fuel with Hydrogen Peroxide Oxidizer,” The 60th Israel Annual Conference on Aerospace Sciences, Tel Aviv/Technion, Israel, 2020.
  4. K.C. Opacich, J.S. Heyne, T. Ombrello, J. Lefkowitz, R. Leiweke and K. Busby. “An Investigation on Kernel Growth Variations between Conventional Spark Discharges and Nanosecond-Pulsed High-Frequency Discharges,” AIAA SciTech 2020 Forum, AIAA 2020-0428, 2020.
  5. S. Nath, I. Laso, & J. Lefkowitz, “Parametric Study of a Non-Toxic Hypergolic Hybrid Rocket Propellant Combination,” Proceedings of the European Combustion Meeting, Napoli, Italy, 14-15 April, 2021.
  6. G. Faingold, J.K. Lefkowitz, “Enhancing ammonia combustion with hydrogen-ozone mixtures: plasma assisted reforming, ignition and flames.” Proceedings of the European Combustion Meeting, Napoli, Italy, 14-15 April, 2021.
  7. Laso, S. Shen, & J.K. Lefkowitz, “Optimization of Energy Distribution in Nanosecond-Pulsed High-Frequency Discharge Ignition,” Proceedings of the European Combustion Meeting, 14-15 April, 2021.
  8. S. Nath, I. Laso, & J. Lefkowitz, “Parametric Ignition Study of a Green Hypergolic Hybrid Rocket Fuel,” AIAA SciTech 2022 Forum, AIAA 2022-1484, San Diego, CA, USA, 3-7 January, 2022.
  9. S. Shen, I. Laso & J.K. Lefkowitz, “Optimization of Energy Distribution in Nanosecond-Pulsed High-Frequency Discharge Ignition,” AIAA SciTech 2022 Forum, San Diego, CA, USA, 3-7 January, 2022.
  10. S. Nath, I. Laso, J.K. Lefkowitz, “Ignition Studies on a Non-Toxic Hypergolic Hybrid Rocket Propellant”, The 61st Israel Annual Conference on Aerospace Sciences, Shefayim, Israel, March 9-10, 2022.
  11. S. Shen, I. Laso, N. Rozin, & J.K. Lefkowitz, “On Pulse Energy and Energy Distribution for Ignition of Flowing Mixtures,” The 61st Israel Annual Conference on Aerospace Sciences, Shefayim, Israel March 9-10, 2022.
  12. O. Hamo, A. Kapulkin, M. Rubanovich, J.K. Lefkowitz &, D. R. Lev, “Experimental Investigation of an External Discharge Very Low Power (<20W) Hall Thruster”, The 37th International Electric Propulsion Conference, Massachusetts Institute of Technology, Cambridge, MA USA, June 19-23, 2022.
  13. S. Nath, L. Mallick, J. Lefkowitz, “Spray Ignition Studies on a Green Hypergolic Hybrid Rocket Propellant,” AIAA SciTech 2023 Forum, 2023-1831, National Harbor, MD, USA, January 23-27, 2023.
  14. J.J. van der Lee, D. Michaels and J. Lefkowitz, “Flame Stability of Preheated Liquid Hydrocarbon Fuel in a Cavity-Strut Configured Scramjet Combustor,” AIAA SciTech 2023 Forum, AIAA 2023-1647, National Harbor, MD, USA, January 23-27, 2023.
  15. T.S. Taneja, T. Ombrello, J. Lefkowitz and S. Yang. “Numerical Investigation of Ignition Kernel Development with Nanosecond Pulsed Plasma in Quiescent and Flowing Mixtures,” AIAA SciTech 2023 Forum, AIAA 2023-0749, National Harbor, MD, USA, January 23-27, 2023.
  16. S. Shen, E. Rempe and J. Lefkowitz. “On Hydrodynamic Regimes of Pulse Ignition in Methane-Air Flow,” AIAA SciTech 2023 Forum, AIAA 2023-0746, National Harbor, MD, USA, January 23-27, 2023.
  17. S. Shoshani, H. Samuels, J. Lefkowitz, E. Sher, “Alternative Mechanical Propulsion Systems for UAV,” The 62nd Israel Annual Conference on Aerospace Sciences, Tel Aviv/Haifa, Israel March 15-16, 2023.
  18. D. Castaneda, S. Hassid, J. Lefkowitz, B. Natan, “Simplified Hypergolic Ignition Model Based on Thermal Diffusion,” The 62nd Israel Annual Conference on Aerospace Sciences, Tel Aviv/Haifa, Israel March 15-16, 2023.
  19. J. van der Lee, D. Michaels, J. Lefkowitz, “Liquid and Gaseous Hydrocarbon Fuels in a Scramjet Model Combustor,” The 62nd Israel Annual Conference on Aerospace Sciences, Tel Aviv/Haifa, Israel March 15-16, 2023.
  20. S. Nath, L. Mallick, J. Lefkowitz, “Ignition of a Green Hypergolic Hybrid Rocket Propellant under Oxidizer Sprays,” The 62nd Israel Annual Conference on Aerospace Sciences, Tel Aviv/Haifa, Israel March 15-16, 2023.
  21. O. Hamo, J. Lefkowitz, D. Lev, I. Kronhaus, “Optical Emission Spectroscopy for Very Low Power Hall Effect Thrusters,” Tel Aviv/Haifa, Israel March 15-16, 2023.
  22. S. Shen, W. Tybora, J. Lefkowitz, “Nanosecond Pulsed Plasma Discharge in High-speed Flow,” AIAA SciTech 2024 Forum, AIAA 2024-0600, Orlando, FL, USA, January 8-12, 2024.
  23. S. Nath, L. Mallick, J. Lefkowitz, “Chemical Species involved in Hypergolic Ignition of a Green Hybrid Rocket Propellant,” AIAA SciTech 2024 Forum, AIAA 2024-1644, Orlando, FL, USA, January 8-12, 2024.

 

Plenary, keynote or invited talks
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  1. “Dynamics of Spark Ignition in High-speed Flows,” The 32nd Annual Symposium of the Israeli Section of the Combustion Institute, Tel Aviv, Israel, 2018.
  2. “Innovations in Chemistry of Igniting Energy Materials,” 14th Energetic Materials Seminar, Tel Aviv, Israel, 2019.
  3. “Improved Ignition for Small-scale UAV Engines,” 9th Conference on UAV Propulsion Technology, Haifa, Israel, 2020.
  4. “A New Approach to Ignition: Minimum Ignition Power and Inter-pulse Coupling,” Combustion Webinar, February 27, 2021.
  5. “Electrifying Combustion: How Plasma Technology Can Accelerate the Transition to Renewable Energy,” American Israel Friendship League Webinar, August 18, 2021.
  6. “Plasma-Assisted Combustion Panel” ASME Turbo Expo 2022, Rotterdam, Netherlands, 2022.
  7. “Plasma reforming of ammonia for improved combustion performance,” ISPC25, Kyoto, Japan, 2023.
  8. “A New Approach to Ignition: Minimum Ignition Power and Inter-pulse Coupling,” Departmental Seminar, Department of Mechanical Engineering, Texas A&M University, College Station, TX, USA.
Contributed Talks and Posters
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  1. J.K. Lefkowitz, R. Brayfield, J. Miles, S. Adams, T. Ombrello, “The Effect of Inter-pulse Coupling on Plasma Temperature in Nanosecond-pulsed High-frequency Discharges,” The 20th Israeli Plasma Science and Applications Conference, Tel Aviv, Israel, 2018, presentation.
  2. R.D. Stachler, J.K. Lefkowitz, J.S. Heyne, S.D. Stouffer, T.M. Ombrello, J.D. Miller, “The impact of residence time on ignitability and time to ignition in a toroidal jet-stirred reactor,” 37th International Symposium on Combustion, Dublin, Ireland, 2018, presentation.
  3. J.M. Bonebrake, D.L. Blunck, J.K. Lefkowitz, T.M. Ombrello, “The Effect of Nanosecond Pulsed High Frequency Discharges on the Temperature Evolution of Ignition Kernels,” 37th International Symposium on Combustion, Dublin, Ireland, 2018, presentation.
  4. L. Wermer, J.K. Lefkowitz, T. Ombrello, S. Im, “Ignition Enhancement by Dual-pulse Laser-induced Spark Ignition in a Lean Premixed Methane-air Flow,” 37th International Symposium on Combustion, Dublin, Ireland, 2018, presentation.
  5. J.K. Lefkowitz, “New Insights for Ignition in Gas Turbine Engines,” The 17th Israeli Symposium on Jet Engines and Gas Turbines, Haifa, Israel, 2018, presentation.
  6. G. Faingold and J.K. Lefkowitz, “Ignition characteristics of plasma reformed n-heptane in a homogeneous charge compression ignition engine,” Proceedings of the European Combustion Meeting, Lisbon, Portugal, 2019, poster.
  7. J.K. Lefkowitz, S. Hammack, C. Carter, T. Ombrello, “Plasma-Assisted Super-Equilibrium Radical Generation and its Effect on Ignition,” Proceedings of the European Combustion Meeting, Lisbon, Portugal, 2019, poster.
  8. G. Faingold and J.K. Lefkowitz “Plasma assisted ignition control: modifying ignition characteristics of n-heptane in a plasma discharge”, 37th Annual Conference of the Israel Vacuum Society, Haifa, 2019, presentation.
  9. J.K. Lefkowitz, “Innovations in Chemistry of Igniting Energy Materials,” 14th Energetic Materials Seminar, Tel Aviv, Israel, 2019, presentation.
  10. G. Faingold and J.K Lefkowitz, “A Numerical Investigation of NH3/O2/He Ignition Limits in a Non-Thermal Plasma”, The 8th Conference on Propulsion Technologies for Unmanned Aerial Vehicles, Haifa, 2019, poster.
  11. G. Faingold and J.K Lefkowitz, “Kinetic modeling of ammonia chemistry in a non-thermal plasma”, The 33rd Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv, 2019, poster.
  12. S. Nath, M. Skrynychenko, J. Lefkowitz, “Drop Test Experiment to Characterize Solid Fuel for Hypergolic Hybrid Rockets,” The 33rd Annual Symposium of the Israeli Section of the Combustion Institute, Tel Aviv, Israel, 2019, poster.
  13. I. Laso, N. Rozin, J. Lee, J. Lefkowitz, “A New Ignition Tunnel Design,” The 33rd Annual Symposium of the Israeli Section of the Combustion Institute, Tel Aviv, Israel, 2019, poster.
  14. K. Linshitz, M. Berreby, J. Lefkowitz, “Flow characterization of arc plasma wind tunnel by laser absorption spectroscopy of nitric oxide and water molecules”, The 33rd Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv, Israel, 2019, poster.
  15. I. Laso, N. Rozin, J. Lee, J. Lefkowitz, “A New Ignition Tunnel Design,” The 18th Israeli Symposium on Jet Engines & Gas Turbines, Technion, Haifa, Israel, 2019, poster.
  16. I. Laso, N. Rozin, J. Lee, J. Lefkowitz, “A New Tunnel for Ignition Research,” The 18th Israeli Symposium on Jet Engines & Gas Turbines, Haifa, Israel, 2019, presentation.
  17. K. Linshitz, M. Berreby, J. Lefkowitz, “Flow characterization of arc plasma wind tunnel by laser absorption spectroscopy of nitric oxide and water molecules”, The 18th Israeli Symposium on Jet Engines & Gas Turbines, Haifa, Israel, 2019, poster.
  18. I. Laso, N. Rozin, J. Lee, J. Lefkowitz, “A New Tunnel for Ignition Research,” The 60th Israel Annual Conference on Aerospace Sciences, Tel Aviv/Technion, Israel, 2020, presentation.
  19. K. Linshitz, M. Berreby, J. Lefkowitz, “Flow characterization of arc plasma wind tunnel by laser absorption spectroscopy of nitric oxide and water molecules”, The 60th Israel Annual Conference on Aerospace Sciences, Tel Aviv/Technion, Israel, 2020, presentation.
  20. S. Nath, M. Skrynychenko, J. Lefkowitz, “Drop-Test Facility for Studying Ignition Characteristics of Hypergolic Solid Fuel with Hydrogen Peroxide Oxidizer,” The 60th Israel Annual Conference on Aerospace Sciences, Tel Aviv/Technion, Israel, 2020, presentation.
  21. K.C. Opacich, J.S. Heyne, T. Ombrello, J. Lefkowitz, R. Leiweke and K. Busby. “An Investigation on Kernel Growth Variations between Conventional Spark Discharges and Nanosecond-Pulsed High-Frequency Discharges,” AIAA SciTech 2020 Forum, AIAA 2020-0428, 2020, presentation.
  22. G. Faingold, J.K. Lefkowitz, “A Numerical Investigation of NH3/O2/He Ignition Limits in a Non-Thermal Plasma,” 66th Annual Conference of the Israel Physical Society, online conference, 2020, presentation.
  23. I. Laso, S. Shen, & J.K. Lefkowitz, “Optimization of Energy Distribution in Nanosecond Pulsed High Frequency Discharge Ignition,” 34th Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv & Haifa, Israel, 2020, presentation.
  24. S. Nath, I. Laso, J. Lefkowitz, “Drop-Test Experiment for Studying Ignition Characteristics of Hypergolic Solid Fuel with Hydrogen Peroxide Oxidizer,” 34th Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv & Haifa, Israel, 2020, presentation.
  25. I. Laso, S. Shen, N. Rozin, J. Van der Lee, & J.K. Lefkowitz, “An Innovative Tunnel for Ignition Research on High-Temperature and High-Velocity Flows,” 38th International Symposium on Combustion, Adelaide, Australia (and online), 2020, poster.
  26. I. Laso, N. Rozin, J. Lee, J. Lefkowitz, “A New Ignition Tunnel Design,” The 9th Conference on Propulsion Technologies for Unmanned Aerial Vehicles, Haifa, Israel, 2020, poster.
  27. K. Linshitz, M. Berreby, J. Lefkowitz, “Flow characterization of arc plasma wind tunnel by laser absorption spectroscopy of nitric oxide and water molecules”, The 9th Conference on Propulsion Technologies for Unmanned Aerial Vehicles, Haifa, Israel, 2020, poster.
  28. G. Faingold, J.K. Lefkowitz, “A Numerical Investigation of NH3/O2/He Ignition Limits in a Non-Thermal Plasma,” The 9th Conference on Propulsion Technologies for Unmanned Aerial Vehicles, Haifa, 2020, poster.
  29. J.K. Lefkowitz, S.D. Hammack, C. Carter, T. Ombrello, “Elevated OH Production from NPHFD and its Effect on Ignition,” 38th International Symposium on Combustion, online conference, Adelaide, Australia, 2021, presentation.
  30. G. Faingold, J.K. Lefkowitz, “A Numerical Investigation of NH3/O2/He Ignition Limits in a Non-Thermal Plasma,” 38th International Symposium on Combustion, online conference, Adelaide, Australia, 2021, presentation.
  31. K.C. Opacich, T. Ombrello, J.S. Heyne, J.K Lefkowitz, “Analyzing the Ignition Differences Between Conventional, Spark Discharges and Nanosecond-Pulsed High-Frequency Discharges,” 38th International Symposium on Combustion, online conference, Adelaide, Australia, 2021, presentation.
  32. G. Faingold, J.K. Lefkowitz, “A Numerical Investigation of NH3/O2/He Ignition Limits in a Non-Thermal Plasma,” 38th Annual IVS-IPSTA Conference, online conference, 2021, presentation.
  33. J.K. Lefkowitz, “A New Approach to Ignition: Minimum Ignition Power and Inter-pulse Coupling,” Combustion Webinar, February 27, 2021, presentation.
  34. S. Nath, I. Laso, & J. Lefkowitz, “Parametric Study of a Non-Toxic Hypergolic Hybrid Rocket Propellant Combination,” 10th European Combustion Meeting, Napoli, Italy, 14-15 April, 2021.
  35. G. Faingold, J.K. Lefkowitz, “Enhancing ammonia combustion with hydrogen-ozone mixtures: plasma assisted reforming, ignition and flames.” 10th European Combustion Meeting, Napoli, Italy, 14-15 April, 2021.
  36. I. Laso, S. Shen, & J.K. Lefkowitz, “Optimization of Energy Distribution in Nanosecond-Pulsed High-Frequency Discharge Ignition,” 10th European Combustion Meeting, Napoli, Italy, 14-15 April, 2021.
  37. J.K. Lefkowitz, T. Ombrello, “Electrifying Combustion: How Plasma Technology Can Accelerate the Transition to Renewable Energy,” American Israel Friendship League Webinar, August 18, 2021.
  38. G. Faingold, J. Lefkowitz, “Enhancing ammonia combustion with hydrogen-ozone mixtures: plasma assisted reforming, ignition and flames.” 39th Annual IVS-IPSTA Conference, online conference, November 17, 2021, poster.
  39. S. Shen, I. Laso, N. Rozin, & J.K. Lefkowitz, “On Energy Distribution in Nanosecond-Pulsed High-Frequency Discharge Ignition,” 39th Annual IVS-IPSTA Conference, online conference, November 17, 2021, poster.
  40. O. Hamo, I. Kronhaus, J. Lefkowitz, “Optical Emission Spectroscopy Measurements of the Narrow Channel Hall Thruster”, 39th Annual IVS-IPSTA Conference, November 17, 2021, presentation.
  41. S. Nath, I. Laso, & J. Lefkowitz, “Parametric Ignition Delay Study of a Non-Toxic Hypergolic Hybrid Rocket Propellant.” 35th Annual Symposium of the Israeli Section of the Combustion Institute, Tel Aviv, Israel, December 2, 2021, poster.
  42. G. Faingold, J. Lefkowitz, “Enhancing ammonia combustion with hydrogen-ozone mixtures: plasma assisted reforming, ignition and flames.” 35th Annual Symposium of the Israeli Section of The Combustion Institute, Tel Aviv, December 2, 2021, poster.
  43. J.J. Van der Lee, D. Michaels, J. Lefkowitz, “Combustion Characteristics of Liquid Hydrocarbon Fueled Scramjets,” 35th Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv, Israel December 2, 2021, poster.
  44. S. Shen, I. Laso, N. Rozin, & J.K. Lefkowitz, “Pulse Energy Effects in Nanosecond-Pulsed High-Frequency Discharge Ignition,” 35th Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv, Israel December 2, 2021, presentation.
  45. S. Nath, I. Laso, & J. Lefkowitz, “Parametric Ignition Study of a Green Hypergolic Hybrid Rocket Fuel,” AIAA SciTech 2022 Forum, AIAA 2022-1484, San Diego, CA, USA, 3-7 January, 2022, presentation.
  46. S. Shen, I. Laso & J.K. Lefkowitz, “Optimization of Energy Distribution in Nanosecond-Pulsed High-Frequency Discharge Ignition,” AIAA SciTech 2022 Forum, San Diego, CA, USA, 3-7 January, 2022, presentation.
  47. S. Nath, I. Laso, J.K. Lefkowitz, “Ignition Studies on a Non-Toxic Hypergolic Hybrid Rocket Propellant”, 61st Israel Annual Conference on Aerospace Sciences, Shefayim, Israel, March 9-10, 2022, presentation.
  48. S. Shen, I. Laso, N. Rozin, & J.K. Lefkowitz, “On Pulse Energy and Energy Distribution for Ignition of Flowing Mixtures,” The 61st Israel Annual Conference on Aerospace Sciences, Shefayim, Israel March 9, 2022, presentation.
  49. S. Shen, J.K. Lefkowitz, “Nanosecond-Pulsed High-Frequency Plasma Ignition in Flowing Reactive Mixtures,” International Workshop on Plasma-Assisted Combustion, CentraleSupélec, Université Paris, June 9-10, 2022, presentation.
  50. N. Druker & J.K. Lefkowitz, “A high-fidelity numerical solver and method for 1D plasma discharges,” International Workshop on Plasma-Assisted Combustion, CentraleSupélec, Université Paris, June 9-10, 2022, presentation.
  51. G. Faingold & J.K. Lefkowitz, “Well-stirred reactor with homogeneous plasma for development of chemical kinetic model of plasma, ammonia and air,” International Workshop on Plasma-Assisted Combustion, CentraleSupélec, Université Paris, June 9-10, 2022, presentation.
  52. O. Hamo, A. Kapulkin, M. Rubanovich, J.K. Lefkowitz &, D. R. Lev, “Experimental Investigation of an External Discharge Very Low Power (<20W) Hall Thruster”, The 37th International Electric Propulsion Conference, Massachusetts Institute of Technology, Cambridge, MA USA, June 19-23, 2022, presentation.
  53. S. Shen, I. Laso Miqueo, N. Rozin, J.K. Lefkowitz, “On Energy Distribution and Minimum Ignition Power for Ignition of Flowing Mixtures,” 39th International Symposium on Combustion, Vancouver, Canada, 2022, presentation.
  54. S. Nath, Iker Laso, L. Mallick, Z. Sobe, S. Koffler, B. Blumer-Ganon, E. Borzin, N. Libis, J.K. Lefkowitz, “Comprehensive Ignition Characterization of a Non-toxic Hypergolic Hybrid Rocket Propellant,” 39th International Symposium on Combustion, Vancouver, Canada, 2022, presentation.
  55. G. Faingold & J.K. Lefkowitz, “Ammonia-air chemistry in a plasma discharge: modeling study and experimental setup for validation,” 39th International Symposium on Combustion, Canada, Vancouver, July 24-29, 2022, poster.
  56. G. Faingold, & J.K. Lefkowitz, “Well-stirred reactor with homogeneous plasma for development of chemical kinetic model of plasma, ammonia and air,” 1st Symposium on Ammonia Energy, United Kingdom, Cardiff, September 1-2, 2022, presentation.
  57. S. Shen, E. Rempe, & J.K. Lefkowitz, “On Nanosecond-Pulsed High-Frequency Plasma Ignition Regimes in Flowing Reactive Mixtures,” 19th Israeli Symposium on Jet Engines & Gas Turbines, Haifa, Israel November 17th, 2022, presentation.
  58. G. Faingold & J. K. Lefkowitz, “Plasma assisted reforming for enhanced ammonia ignition and reduced NOx emissions,” 19th Symposium on Jet Engines and Gas Turbines, Haifa, Israel, November 17, 2022, presentation.
  59. S. Shen, E. Rempe, J.K. Lefkowitz, “On Discharge Regimes of Pulse Ignition in Methane-Air Flow,” 36th Annual Symposium of the Israeli Section of the Combustion Institute, Tel Aviv, Israel December 8th, 2022, presentation.
  60. S. Nath, L. Mallick, J.K. Lefkowitz, “Effect of Oxidizer Droplet Properties on Hypergolic Ignition of a Hybrid Rocket Propellant”, 36th Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv, Israel December 8, 2022, presentation.
  61. J.J. van der Lee, D. Michaels, J.K. Lefkowitz, “Liquid-fuel Scramjet Combustion,” 36th Annual Symposium of the Israeli Section of the Combustion Institute, Tel-Aviv, Israel, December 8, 2022, presentation
  62. S. Nath, L. Mallick, J. Lefkowitz, “Spray Ignition Studies on a Green Hypergolic Hybrid Rocket Propellant,” AIAA SciTech 2023 Forum, 2023-1831, National Harbor, MD, USA, January 23-27, 2023, presentation.
  63. J. van der Lee, D. Michaels and J. Lefkowitz, “Flame Stability of Preheated Liquid Hydrocarbon Fuel in a Cavity-Strut Configured Scramjet Combustor,” AIAA SciTech 2023 Forum, AIAA 2023-1647, National Harbor, MD, USA, January 23-27, 2023, presentation.
  64. T.S. Taneja, T. Ombrello, J. Lefkowitz and S. Yang. “Numerical Investigation of Ignition Kernel Development with Nanosecond Pulsed Plasma in Quiescent and Flowing Mixtures,” AIAA SciTech 2023 Forum, AIAA 2023-0749, National Harbor, MD, USA, January 23-27, 2023, presentation.
  65. J.J. van der Lee, D. Michaels, J.K. Lefkowitz, “Flame Stability of Preheated Liquid Hydrocarbon Fuel in a Cavity-Strut Configured Scramjet Combustor,” AIAA SciTech 2023 Forum, AIAA 2023-1647, National Harbor, MD, USA, January 23-27, 2023, presentation.
  66. S. Shen, E. Rempe and J. Lefkowitz. “On Hydrodynamic Regimes of Pulse Ignition in Methane-Air Flow,” AIAA SciTech 2023 Forum, AIAA 2023-0746, National Harbor, MD, USA, January 23-27, 2023, presentation.
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