Tiegang Fang


  • 919-515-5230
  • Engineering Building III (EB3) 3246

Dr. Fang’s long-term goal is to improve the environment and reduce our energy needs by the advancement of clean combustion. He is interested in combustion, internal combustion engines, exhaust emissions and air pollution control, alternative fuels, spray and atomization, droplet impact, laser diagnostics for reacting flows, energy conversion systems, heat and mass transfer, and fluid mechanics.

Dr. Fang, who arrived at NC State in 2007, has developed a new graduate class in Advanced Engine Combustion (MAE 589), which was expanded to Automotive Power Systems (MAE589) recently. At the undergraduate level, Dr. Fang teaches Fluid Mechanics I (MAE 308) and Internal Combustion Engines (MAE 408). In his undergraduate classes Dr. Fang is known to bring to class a lot of videos that help students see flow and combustion behavior in action.

Dr. Fang’s research is interesting to students because it addresses important societal needs, the work is hands-on, and because the students design their own experimental apparatuses. The students particularly enjoy the high-speed cameras and the laser diagnostic methods that enable them to see inside the engine and observe the behavior of the combusting flame, suggesting how the combustion processes can be made cleaner.

Dr. Fang looks for students who are hard-working and creative. In return, Dr. Fang is an advisor who sets clear goals, works closely with his students in the lab and provides them with regular feedback.



Mechanical Engineering

University of Illinois at Urbana-Champaign


Mechanical Engineering

Rutgers University


Automotive Engineering

Tsinghua University

Research Description

Dr. Fang is presently 1) studying engine spray atomization and combustion of liquid fuels, 2) performing fundamental work in understanding liquid break-up in two-phase flows, and 3) investigating liquid droplet interaction with complex surfaces, including fabrics, for Blood Pattern Analysis (BPA) in forensic science applications. Many of his advancements result from his unique strategies for the visualization of the fluid/combustion process. Within MAE, he collaborates with Dr. Buckner, Dr. Edwards, Dr. Ngaile, Dr. Jiang, and Dr. Zhu.

Honors and Awards

  • University Faculty Scholar, 2020
  • Defense University Research Instrumentation Program (DURIP) Award , 2018
  • Ralph R. Teetor Educational Award, SAE International, 2014
  • Alcoa Foundation Engineering Research Achievement Award, 2013


A comprehensive study of spray and combustion characteristics of a prototype injector for gasoline compression ignition (GCI) application
Du, J., Mohan, B., Sim, J., Fang, T., Chang, J., & Roberts, W. L. (2020), FUEL, 277. https://doi.org/10.1016/j.fuel.2020.118144
Auto-ignition characteristics of high-reactivity gasoline fuel using a gasoline multi-hole injector
Du, J., Mohan, B., Sim, J., Fang, T., & Roberts, W. L. (2020), EXPERIMENTAL THERMAL AND FLUID SCIENCE, 112. https://doi.org/10.1016/j.expthermflusci.2019.109993
Retraction dynamics of water droplets after impacting upon solid surfaces from hydrophilic to superhydrophobic
Wang, F., & Fang, T. (2020), PHYSICAL REVIEW FLUIDS, 5(3). https://doi.org/10.1103/PhysRevFluids.5.033604
Soot characteristics of high-reactivity gasoline under compression-ignition conditions using a gasoline direct injection (GDI) piezoelectric fuel injector
Wang, L., Wu, Z., Badra, J. A., Roberts, W. L., & Fang, T. (2020), FUEL, 265. https://doi.org/10.1016/j.fuel.2019.116931
Study of spray collapse phenomenon at flash boiling conditions using simultaneous front and side view imaging
Du, J., Mohan, B., Sim, J., Fang, T., & Roberts, W. L. (2020), INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 147. https://doi.org/10.1016/j.ijheatmasstransfer.2019.118824
Auto-ignition of direct injection spray of light naphtha, primary reference fuels, gasoline and gasoline surrogate
Wang, L., Wu, Z., Ahmed, A., Badra, J. A., Sarathy, S. M., Roberts, W. L., & Fang, T. (2019), ENERGY, 170, 375–390. https://doi.org/10.1016/j.energy.2018.12.144
Effects of fuels on flash boiling spray from a GDI hollow cone piezoelectric injector
Wang, L., Vinod, K. N., & Fang, T. (2019), FUEL, 257. https://doi.org/10.1016/j.fuel.2019.116080
Experimental and analytical study on liquid and vapor penetration of high-reactivity gasoline using a high-pressure gasoline multi-hole injector
Du, J., Mohan, B., Sim, J., Fang, T., & Roberts, W. L. (2019), APPLIED THERMAL ENGINEERING, 163. https://doi.org/10.1016/j.applthermaleng.2019.114187
Flash boiling hollow cone spray from a GDI injector under different conditions
Wang, L., Wang, F., & Fang, T. (2019), INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 118, 50–63. https://doi.org/10.1016/j.ijmultiphaseflow.2019.05.009
High injection pressure diesel sprays from a piezoelectric fuel injector
Wang, L., Lowrie, J., Ngaile, G., & Fang, T. (2019), APPLIED THERMAL ENGINEERING, 152, 807–824. https://doi.org/10.1016/j.applthermaleng.2019.02.095

View all publications via NC State Libraries


Physical Characteristics of Spatter Stains on Textiles: Influence of Impact Surface Texture, Blood Drop Volume and Blood Drop Velocity
National Institute of Justice(1/01/19 - 12/31/20)
US Dept. of Energy (DOE) - Energy Efficiency & Renewable Energy (EERE)(1/01/18 - 12/31/20)
DURIP: Pre-heating Constant Volume Combustion Chamber System for Characterization of Spray Compression-Ignition Combustion
US Dept. of Defense (DOD)(9/14/18 - 6/13/21)
Supercritical Spray For Dual Fuel Combustion
University Global Partnership Network (UGPN)(8/01/17 - 7/31/18)
Spray Characterization for a Gasoline Direct Injection Fuel Injector
King Abdullah University of Science and Technology (KAUST)(2/16/16 - 8/15/16)
Use of North Carolina Biomass Resources for Production of Fuels and Materials
NC Biotechnology Center(1/01/16 - 6/30/17)
Evaluation of Locomotive Emissions Reduction Strategies
NC Department of Transportation(8/16/15 - 12/31/17)
Laser Ultrasound Patch Using Carbon Nanofiber Composites
NCSU Research and Innovation Seed Funding Program(7/01/15 - 6/30/16)
Experimental Validation of Variable Geometry Spray Fuel Injection Technology
Chancellor's Innovation Fund (CIF)(7/01/14 - 12/30/15)
Reactive Supersonic Diesel Jets Under Extreme High Injection Pressure
National Science Foundation (NSF)(8/01/14 - 1/31/16)