Academic Staff

Area of Specialisation

• Mechanisms of compressible turbulent wall-bounded turbulence
• Transition process and stability analysis of compressible transitional wall-bounded turbulence
• Machine learning based modelling of compressible turbulent wall-bounded turbulence
• Multiphase flows with phase change
• Turbulent Mixing and Transport
  
  

Short Description

Dr Dehao Xu received his Bachelor of Science from the Southern University of Science and Technology in 2018. He subsequently earned his PhD in 2023 from Peking University under the supervision of Prof. Shiyi Chen. Following his doctorate, he was a Postdoctoral Fellow at the University of Twente (2023–2025) and later at The Hong Kong Polytechnic University (2025). Dr Xu is currently a Research Assistant Professor in the Department of Aeronautical and Aviation Engineering at The Hong Kong Polytechnic University.

Dr Xu mainly focuses on the mechanisms and modelling of the compressible turbulent wall-bounded turbulence, and the multiphase flows with phase change. His publications include over ten journal papers in Journal of Fluid Mechanics, Physical Review Fluids, Physics of Fluids, etc. as the first or corresponding author. He has been recognized with several awards, including the National Scholarship, the Outstanding Graduate award, and the Outstanding Doctoral Dissertation award from both Peking University and the Beijing Municipal Education Commission.

Selected Journal Publications

1. Dehao Xu, Jianchun Wang, Minping Wan, Changping Yu, Xinliang Li, Shiyi Chen. Effect of wall temperature on the kinetic energy transfer in a hypersonic turbulent boundary layer. Journal of Fluid Mechanics, 2021, 929: A33.
2. Dehao Xu, Jianchun Wang, Shiyi Chen. Skin-friction and heat-transfer decompositions in hypersonic transitional and turbulent boundary layers. Journal of Fluid Mechanics, 2022, 941: A4.
3. Dehao Xu, Jianchun Wang, Changping Yu, Shiyi Chen. Artificial-neural-network-based nonlinear algebraic models for large-eddy simulation of compressible turbulent channel flow. Journal of Fluid Mechanics, 2023, 960: A4.
4. Dehao Xu, Jianchun Wang, Shiyi Chen. Reynolds number and wall cooling effects on correlations between the thermodynamic variables in hypersonic turbulent boundary layers. Journal of Fluid Mechanics, 2023, 965: A4.
5. Dehao Xu, Jianchun Wang, Shiyi Chen. Wall cooling effect on spectra and structures of thermodynamic variables in hypersonic turbulent boundary layers. Journal of Fluid Mechanics, 2023, 974: A55.
6. Dehao Xu, Rui Yang, Roberto Verzicco, Detlef Lohse. Aspect ratio effect on side and basal melting in fresh water. Journal of Fluid Mechanics, 2025, 1010: A40.
7. Dehao Xu, Simen Bootsma, Roberto Verzicco, Detlef Lohse, Sander Huisman. Buoyancy-driven flow regimes for a melting vertical ice cylinder in saline water. Journal of Fluid Mechanics, 2025, 1019: A11.
8. Dehao Xu, Jianchun Wang, Minping Wan, Changping Yu, Xinliang Li, Shiyi Chen. Compressibility effect in hypersonic boundary layer with isothermal wall condition. Physical Review Fluids, 2021, 6: 054609.
9. Dehao Xu, Jianchun Wang, Changping Yu, Xinliang Li, Shiyi Chen. Contribution of flow topology to the kinetic energy flux in hypersonic turbulent boundary layer. Physics of Fluids, 2022, 34: 046103. (Editors’ pick)
10. Dehao Xu, Jianchun Wang, Changping Yu, Xinliang Li, Shiyi Chen. Effect of compressibility on the small-scale structures in hypersonic turbulent boundary layer. Physics of Fluids, 2022, 34: 055121.