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Professor Yonghao Zhang

PhD, CEng, FIMechE, FInstP
Weir Chair of Thermodynamics and Fluid Mechanics

James Weir Fluids Laboratory, Department of Mechanical and Aerospace Engineering,
University of Strathclyde, Glasgow G1 1XJ, UK


My ambition is to lead the James Weir Fluids Laboratory to advance our understanding of fundamental flow physics and chemistry in micro/nano systems, with the aim of utilising these research advances to develop new technologies with capabilities beyond any currently conceived. 

My expertise is in the fluid dynamics of rarefied flows, which presents an important technological challenge, with long-term research and industrial implications. My group is among the first to develop lattice Boltzmann (LB) methods for simulating rarefied flows. In particular, we were the first to prove that high-order LB models can be reduced to the linearised BGK equation, giving confidence that LB models can be applied to highly rarefied gas dynamics. We also developed a fast spectral method for solving the Boltzmann equation, considering different molecular potential models. My other research activities centre on complex flow physics, including multiphase flows, droplet technologies and granular flows. Since joining Strathclyde University, my research has been funded by the EPSRC, EU FP7, STFC, Royal Society of Edinburgh, and the Leverhulme Trust. I am a Fellow of Institute of Mechanical Engineers, and a Fellow of Institute of Physics.


I currently hold Weir Chair in Thermodynamics and Fluid Mechanics. After my PhD study in Mechanical Engineering at the University of Aberdeen in 2001, I worked as a Computational Scientist, then Senior Scientist, in the Computational Science and Engineering Department of Daresbury Laboratory. In 2007, I joined the Department of Mechanical Engineering at the University of Strathclyde.

Selected publications

Fast spectral solution of the generalized Enskog equation for dense gases
Wu, L and Zhang, YH and Reese, JM.

Journal of Computational Physics 303: 66–79.

Lattice Boltzmann modeling of contact angle and its hysteresis in two-phase flow with large viscosity difference
Liu, HH and Ju, YP and Wang, NN and Xi, G and Zhang, YH

Physical Review E 92: 033306.

Research interests

My research has mainly been on understanding multi-scale and multi-physical flow physics through theoretical and computational studies. We have developed a suite of computational models for gas non-equilibrium flows and multiphase flows, especially at the micro/nano scales. These models can be exploited for both fundamental research and engineering design simulations. We have recently been applying our models for pore scale study of unconventional gas flows in ultra-tight porous media, multiphase flows in porous media, and droplet dynamics in microfluidic channels. While we continue our effort to improve our models, we expand our work to erosion and corrosion of oil pipelines, fluids/surface interactions, and vacuum technologies.