• United Kingdom

Accepting PhD Students

20002022
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Personal profile

Research Interests

I have been working on understanding multiscale fluid dynamics for many years. My research focuses are:

  • rarefied gas dynamics
  • interfacial dynamics
  • microfluidics: device optimal design and operation;
  • experimental and numerical study of microdroplet technology;
  • non-equilibrium fluid flows;
  • lattice Boltzmann method;
  • granualar flows

Personal Statement

Yonghao Zhang is Weir Professor of Thermodynamics and Fluid Mechanics and Director of James Weir Fluids Laboratory (http://www.jwfl.ac.uk). His ambition is to lead JWFL 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.

His expertise is in the fluid dynamics of rarefied flows, which presents an important technological challenge, with long-term research and industrial implications. His group is among the first to develop lattice Boltzmann (LB) methods for simulating rarefied flows. In particular, they 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. His group also developed a fast spectral method for solving the Boltzmann equation, considering different molecular potential models. His other research activities centre on complex flow physics, including multiphase flows, droplet technologies and granular flows. His research has been funded by the EPSRC, EU FP7, STFC, Royal Society of Edinburgh, and the Leverhulme Trust. 

Expertise & Capabilities

My research has mainly been on understanding multi-scale and multi-physical flow physics through theoretical, computational and experimental studies. My group has 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.

Education/Academic qualification

Doctor of Philosophy, University of Aberdeen

Master of Engineering, East China University of Technology

Bachelor of Engineering, Jiangsu University of Technology

Keywords

  • Microfluidics
  • droplet technology
  • lattice Boltzmann method
  • kinetic theory
  • multiscale modelling
  • multiphase flows

Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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Projects 2007 2022

Research Output 2000 2019

5 Citations

A comparative study of discrete velocity methods for low-speed rarefied gas flows

Wang, P., Ho, M. T., Wu, L., Guo, Z. & Zhang, Y., 15 Jan 2018, In : Computers and Fluids. 161, p. 33-46 14 p.

Research output: Contribution to journalArticle

Open Access
File
Kinetic theory of gases
Digital voltmeters
Flow of gases
Hydrodynamics
Gas dynamics

A coupled peridynamics and DEM-IB-CLBM method for sand erosion prediction in a viscous fluid

Zhang, Y., Haeri, S., Zhang, Y. H. & Pan, G., 22 Feb 2018, (Accepted/In press) 12 p.

Research output: Contribution to conferencePaper

Open Access
File
Erosion
Sand
Fluids
Finite difference method
Vortex flow

Thesis

Droplet behaviour in microfluidic devices

Author: England, P., 1 Jun 2011

Supervisor: Zhang, Y. (Supervisor) & Stickland, M. (Supervisor)

Student thesis: Doctoral Thesis

Intelligent design of microfluidic components for Newtonian and complex fluid systems

Author: Zografos, K., 1 Jun 2016

Supervisor: Oliveira, M. (Supervisor) & Zhang, Y. (Supervisor)

Student thesis: Doctoral Thesis