Li Qiao
2007 -
Professor, Associate Head for Engagement and Recognition
Degrees
B.S., Tsinghua University, Engineering Mechanics, 1999
M.S., Tsinghua Univeristy, Engineering Mechanics, 2001
Ph.D., University of Michigan, Aerospace Engineering, 2007
M.S., Tsinghua Univeristy, Engineering Mechanics, 2001
Ph.D., University of Michigan, Aerospace Engineering, 2007
Contact
701 W. Stadium Ave.
West Lafayette, IN 47907-2045
West Lafayette, IN 47907-2045
Office:
ARMS 3221
Office Phone:
(765) 494-2040
Email:
lqiao@purdue.edu
Webpage:
https://qiaoresearchgroup.com/
Interests
Awards and Major Appointments
- CoE Faculty Excellence Award for Online Education, Purdue University, 2026
- Fulbright Scholar Award, 2024
- Boeing Visiting Professor, 2024
- AIAA High Speed Air Breathing Propulsion Best Paper Award, 2022
- Associate Editor, AIAA Journal, 2022-2026
- Board of Directors, the Combustion Institute, 2020-2026
- AIAA Associate Fellow, 2017
- Combustion Art Competition Honorable Mention, “Mesmerizing Micro-world of a Monopropellant Matrix,” the Combustion Institute (with students Sayan Biswas and Shourya Jain), 2016
- Combustion Art Competition 1st Place Prize for Artistic Merit, “Fire Monster,” the Combustion Institute (with student Sayan Biswas), 2015
- NSF CAREER Award, 2013
- AFOSR Young Investigator Award, 2013
- NASA Glenn Summer Faculty Fellowship, 2011
- Combustion Art Competition 2nd Place Prize, “Dr. Combustion,” the Combustion Institute (with student Bogdan Pavlov), 2011
- ARO Young Investigator Award, 2010
- Air Force Summer Faculty Fellowship, 2010
- Combustion Art Competition 2nd Place Prize, “Flame Gone with Butterflies,” the Central States Section of the Combustion Institute (with student Yanan Gan), 2010
- Rackham Predoctoral Fellowship, University of Michigan, 2006
- Margaret Ayers Host Award, University of Michigan, 2005
- Marian Sarah Parker Prize, University of Michigan, 2005
- Amelia Earhart Fellowship, 2004, 2005
- Rackham Engineering Awards Fellowship, University of Michigan, 2002
Research Areas
(1) Sustainable fuels;
(2) Pre-chamber jet ignition for combustion engines;
(3) Thermal management for electric and hybrid aircraft
(4) Battery fire safety
(5) Propulsion technology for drones and UAVs;
(2) Pre-chamber jet ignition for combustion engines;
(3) Thermal management for electric and hybrid aircraft
(4) Battery fire safety
(5) Propulsion technology for drones and UAVs;
Publications
2026
- A. Alam, S. Farmer, M. Behzadnia, X. Jiao, B. VanDerWege, A. Getsoian, C. Iyer, B. Petersen, J. Yi, L. Zhu, L. Qiao, “Impact of Using Flame-Retardant Electrolyte Additives in Li-Ion Batteries: A Comprehensive Evaluation of Ethoxy (Pentafluoro) Cyclotriphosphazene (PFPN),” Batteries, 12(8):299, 2026.
- B. Kim, S. Chakraborty, G. Huang, M. Mathur, G. Lin, L. Qiao, “Symbolic Machine Learning for Vapor-Liquid Equilibrium Prediction in Cx-N2 Binary Mixtures,” arXiv preprint, arXiv:2608.11255, 2026.
- S. Chakraborty, B. Kim, L. Qiao, “Molecular Dynamics Investigation of Mass Transport during Evaporation for the Binary System of n-Dodecane and Nitrogen,” The Journal of Physical Chemistry B, 130(30):7690–7705, 2026.
2025
- D. Lee, T. Yu, Alam, C. Iyer, S. Wooldridge, J. Yi, L. Qiao, “Influence of Pre-Chamber Nozzle Orientation on Dilution Tolerance in a Constant-Volume Optical Engine,” SAE International Journal of Engines, 8(5):577-590, 2025.
- T. Yu, D. Lee, A. Alam, J. Gore, L. Qiao, “Exploring H2/O2 Injection in an Active Pre-Chamber Ignition Engine,” SAE International Journal of Engines, 18(2), 2025.
2024
- D. Lee, T. Yu, A. Alam, C. Iyer, S. Wooldridge, L. Qiao, and J. Yi, “Influence of Passive Pre-Chamber Nozzle Diameter on Jet Ignition in a Constant-volume Optical Engine under Varying Load and Dilution Conditions,” SAE International Journal of Engines, 17(4):493-511, 2024.
- D. Lee, X. Yu, A. Baur, and L. Qiao, “Visualization and Statistical Analysis of Passive Pre-chamber Knock in a Constant-volume Optical Engine,” SAE International Journal of Engines 17(3):2024.
- D. Lee, C. Iyer, S. Wooldridge, L. Qiao, and J. Yi, “Impact of Passive Pre-chamber Nozzle Diameter and Dilution on Jet Formation in a Constant-volume Optical Engine,” SAE International Journal of Engines 17(2):2024.
- T. Yu, D. Lee, J. Gore, and L. Qiao, “Gas-Dynamic Interactions between Pre-Chamber and Main Chamber in Passive Pre-Chamber Ignition Gasoline Engines,” SAE International Journal of Engines 17(1):2024.
2023
- D. Lee, X. Yu, A. Zhang, Y. Zhang, A. Baur, L. Qiao, “Numerical Investigation of Injection Strategies for an Air-Fuel Premixed Pre-Chamber Engine Concept,” SAE International Journal of Engines, 16(6):2023.
2022
- S. Chakraborty, Y. Sun, G. Lin, L. Qiao, “Vapor-liquid Equilibrium Predictions of n-Alkane/Nitrogen Mixtures using Neural Networks,” Journal of Computational and Applied Mathematics, 408, 114059, 2022.
2021
- D. Lee, C. Swanson, Y. Xin, L. Qiao, “Misfire Behavior and Mitigation of Passive Pre-chambers at Low Load Operation in an Optically Accessible Gasoline Engine,” SAE International Journal of Engines, 03-15-03-0016, 2021.
- S. Chakraborty, H. Ge, L. Qiao, “Molecular Dynamics Simulations of Vapor-Liquid Interface Properties of n-Heptane/Nitrogen at Subcritical and Transcritical Conditions,” Journal of Physical Chemistry B, 125, 6968-6985, 2021.
2019
- S. Chakraborty, L. Qiao, “Molecular Investigation of Sub-to-supercritical Transition of Hydrocarbon Mixtures: Multi-component Effect,” International Journal of Heat and Mass Transfer, 145: 118629, 2019.
- G. Shivkumar, L. Qiao, A. Alexeenko, “Plasma-flow Interactions in Field-Emission Discharges with Application to Microcombustion,” Journal of Physics D: Applied Physics, 52, 384001, 2019.
- A. Li, P. Vodka, G. Kilaz, L. Qiao, “Lean Flammability Limit of Alternative Aviation Fuels,” Fire Safety Journal, 108, 102851, 2019.
- S. Jain, S. Chakraborty, L. Qiao, “Burn Rate Enhancement of AP-NC Composite Solid Propellant using CuO-Graphene Foam (GF) Micro-structures,” Combustion and Flame, 206: 282-291, 2019.
- S. Jain, L. Qiao, “MnO2 doped Graphene Foam Micro-structures for the Flame Speed Enhancement of a Solid-propellant,” Proceedings of the Combustion Institute, 37 (4): 5679-5686, 2019.
- S. Biswas, P. Zhang, H. Wang, L. Qiao, “Flame Propagation and Extinction in Converging-Diverging Micro-channels,” Applied Thermal Engineering, 148:1395-1406, 2019.
2018
- S. Biswas, L. Qiao, “Ignition of Ultra-Lean Premixed H2/air by an Impinging Hot Jet,” Applied Energy, 228: 954-964, 2018.
- I. Sabastiao, L. Qiao, A. Alexeenko, “Direct Simulation Monte Carlo Modeling of H2-O2 Deflagration Waves,” Combustion and Flame, 198: 40-53, 2018.
- S. Jain, L. Qiao, “Understanding Spontaneous Combustion of H2/O2 in Nanobubbles by Reactive Molecular Dynamics Simulations,” The Journal of Physical Chemistry A, 122 (24): 5261–5269, 2018.
- S. Biswas, L. Qiao, “Combustion Instabilities of Ultra-lean Premixed H2/Air Mixtures by Pre-chamber Turbulent Jet Ignition,” AIAA Journal of Propulsion and Power, 34 (5): 1166-1177, 2018.
- S. Biswas, L. Qiao, “Ignition of Ultra-lean H2/air Mixtures by Multiple Turbulent Hot Jets Generated by Pre-chamber Combustion,” Applied Thermal Engineering, 132: 102-114, 2018.
2017
- S. Tanvir, S. Biswas, L. Qiao, “Evaporation Characteristics of Ethanol Droplets Containing Graphite Nanoparticles under Infrared Radiation,” International Journal of Heat and Mass Transfer, 114: 541-549, 2017.
- S. Biswas, L. Qiao, “A Numerical Investigation of Ignition of Ultra-lean Premixed H2/Air Mixtures by Pre-chamber Supersonic Hot jet,” SAE International Journal of Engines, 10 (5): 2231-2247, 2017.
- S. Jain, L. Qiao, “Molecular Dynamics Simulations of the Surface Tension of Oxygen-Supersaturated Water,” American Institute of Physics (AIP) Advances, 7, 045001, 2017.
- P. Yi, M. Jia, W. Long, L. Qiao, T. Yang, L. Feng, “Evaporation of Blended Droplets of Diesel and Alcohols (C2-C9) under Diesel Engine Conditions,” Numerical Heat Transfer Part A: Applications, 71, 311-326, 2017.
- G. Mo, L. Qiao, “A Molecular Dynamics Investigation of n-Alkanes Vaporizing into Nitrogen: Transition from Subcritical to Supercritical,” Combustion and Flame, 176: 60-71, 2017.
- S. Jain, G. Mo, L. Qiao, “Molecular Dynamics Simulations of Flame Propagation along a Monopropellant PETN Coupled with Multi-walled Carbon Nanotubes,” Journal of Applied Physics, 121, 054902, 2017.
- S. Biswas, L. Qiao, “A Comprehensive Statistical Investigation of Schlieren Image Velocimetry (SIV) using High Velocity Helium Jet,” Experiments in Fluids, 58:18, 2017.
2016
- S. Jain, W. Park, Y. P. Chen, L. Qiao, “Flame Speed Enhancement of a Nitrocellulose Monopropellant using Graphene Microstructures,” Journal of Applied Physics, 120: 174902, 2016.
- S. Biswas, S. Tanvir, H. Wang, L. Qiao, “On Ignition Mechanisms of Premixed CH4/Air and H2/Air Mixtures using a Hot Turbulent Jet Generated by Prechamber Combustion,” Applied Thermal Engineering, 106: 925-837, 2016.
- S. Biswas, L. Qiao, “Prechamber Hot Jet Ignition of Ultra-Lean H2/Air Mixtures: Effect of Supersonic Jets and Combustion Instability,” SAE International Journal of Engines, 9(3), 1584-1592 2016.
- S. Jain, O. Yehia, L. Qiao, “Flame Speed Enhancement of Solid Nitrocellulose Monopropellant Couple with Graphite at Microscales,” Journal of Applied Physics, 119, 094904, 2016.
- S. Tanvir, L. Qiao, “Droplet Burning Rate Enhancement of Ethanol with the Additional of Graphite Nanoparticles: Effect of Radiation Absorption,” Combustion and Flame, 000: 1-11, 2016.
2015
- S. Tanvir, S. Jain, L. Qiao, “Measurements and Molecular Dynamics Simulations of Latent Heat of Vaporization of Nanofluids,” Journal of Applied Physics, 118, 014902, 2015.
- S. Tanvir, L. Qiao, “Effect of Addition of Nanoparticles on Droplet Burning Rate of Liquid Fuels,” AIAA Journal of Propulsion and Power, 31 (1): 408-415, 2015.
2014
- J. Xu , L. Qiao , J. Gao , J. Chen, “Droplet breakup of micro- and nano-dispersed carbon-in-water colloidal suspensions under intense radiation,” International Journal of Heat and Mass Transfer, 78: 267–276, 2014.
2013
- J. Xu, L. Qiao, J. Gore, “Multiphysics Well-Stirred Reactor Modeling of Coal gasfication Under Itense Thermal Radiation,” International Journal of Hydrogen Energy, 38 (17): 7007-7015, 2013.
2012
- J. Xu, L. Qiao, “Mathematical Modeling of Coal Gasification Processes in a Well-Stirred Reactor: Effects of Devolatilization and Moisture Content,” Energy&Fuels, 26 (9): 5759–5768, 2012.
- Y. Gan, L. Qiao, “Optical Properties and Radiation-enhanced Evaporation of Nanofluid Fuels Containing Carbon-based Nanostructures,” Energy&Fuels, 26 (7): 4224-4230, 2012.
- Y. Gan, L. Qiao, “Radiation-enhanced Evaporation of Ethanol Fuel Containing Suspended Metal Nanoparticles,” International Journal of Heat and Mass Transfer, 55 (21-22): 5777-5782, 2012.
- S. Tanvir, L. Qiao, “Surface Tension of Nanofluid Fuels with Stably Suspended Nanomaterials,” Nanoscale Research Letters, 7: 226-236, 2012.
- L. Qiao, J. Xu, “Detailed Numerical Simulations of Flame Propagation in High-Volatile Dust Clouds,” Combustion Theory and Modeling, 7: 1-27, 2012.
- Y. Gan, Y.S. Lim, L. Qiao, “Combustion of Nanofluid Fuels with the Addition of Boron and Iron particles at Dense and Dilute Concentrations,” Combustion and Flame, 159 (4): 1732–1740, 2012.
- L. Qiao, J. Xu, A. Sane, J. Gore, “Multiphysics Modeling of Coal Gasification Processes in a Perfectly-stirred Reactor with Detailed Gas-Phase Chemistry,” Combustion and Flame, 159 (4): 1693–1707, 2012.
- D. Singh, T. Nishiie, S. Tanvir, L. Qiao, “Flame Speed and Kinetics Analysis of Syngas Flames at Elevated Temperatures and with Water Addition,” Fuel, 94: 448-456, 2012.
- L. Qiao, “Transient Flame Propagation Process and Flame-Speed Oscillation Phenomena in a Carbon Dust Cloud,” Combustion and Flame, 159 (2): 673-685, 2012.
2011
- Y. Gan, L. Qiao, “Evaporation Characteristics of Fuel Droplets with the Addition of Energetic Nanoparticles under Natural and Forced Convections,” International Journal of Heat and Mass Transfer, 54 (23-24): 4913-4922, 2011.
- D. Singh, T. Nishiie, L. Qiao, “Experimental and Kinetic Modeling Study of the Combustion of n-Decane, Jet-A, and S-8 in Laminar Premixed Flames,” Combustion Science and Technology, 183: 1002-1026, 2011.
- Y. Gan, L. Qiao, “Combustion Characteristics of Fuel Droplets Containing Micron and Nano-sized Aluminum Particles,” Combustion and Flame, 158 (2): 354-368, 2011.
2010
- L. Qiao, Y. Gan, T. Nishiie, W. J.A. Dahm, E.S. Oran, “Extinction of Premixed Methane/Air Flames in Microgravity by Diluents: the Effects of Radiation and Lewis Number,” Combustion and Flame, 157 (8): 1446-1455, 2010.
2007
- L. Qiao, Y. Gu, W.J.A. Dahm, E.S. Oran, G.M. Faeth, “A Study of the Effects of Diluents on Near-Limit H2-Air Flames in Microgravity at Normal and Reduced Pressures,” Combustion and Flame, 151: 196-208, 2007.
- L. Qiao, Y. Gu, W.J.A. Dahm, E.S. Oran, G.M. Faeth, “Near-Limit Laminar Burning Velocities of Microgravity Premixed Hydrogen Flames with Various Chemically Passive Fire Suppressants,” Proceedings of the Combustion Institute, 31: 2701-2709, 2007.
2005
- L. Qiao, C.H. Kim, G.M. Faeth, “Suppression Effects of Diluents on Laminar Premixed Hydrogen/Oxygen/Nitrogen Flames,” Combustion and Flame, 143: 79-96, 2005.
2003
- L.X. Zhou, L. Qiao, J. Zhang, “Simulation of NOx Formation in Turbulent Swirling Combustion Using a USM Turbulence-Chemistry Model,” Acta Mechanica Sinica, 19 (3): 208-212, 2003.
2002
- L.X. Zhou, L. Qiao, X.L. Chen, J. Zhang, “A USM Turbulence-Chemistry Model for Simulating NOx Formation in Turbulent Combustion,” Fuel, 81 (13): 1703-1709, 2002.
- L. Qiao, L.X. Zhou, “A USM Turbulence-Chemistry Model for Turbulent Combustion,” Journal of Combustion Science and Technology (in Chinese), 8 (4): 297-301, 2002.