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Accepting PhD Students

PhD projects

Development of combustion chemistry and thermo-physical properties for CFD modelling of multi-component diesel, gasoline and hexanol blends. https://www.qub.ac.uk/courses/postgraduate-research/phd-opportunities/development-of-combustion-chemistry-and-thermophysical-properties-for-cfd-modelling-of-multicomponent-diesel-gasoline-and-hexanol-blends.html


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Personal profile


Thermodynamics and Fluid Mechanics 2, BEng/MEng/MSc Individual Projects

Research Interests

Alternative fuels; chemical kinetics; computational fluid dynamics (CFD); combustion modelling; diesel fuel; hydrogen fuel; hydro-treated renewable diesel; internal combustion engines; reduction schemes; spray/flame structures; soot/NOx emissions


Dr Xinwei Cheng is currently a Lecturer in the School of Mechanical and Aerospace Engineering. She received her Bachelor degree in Mechanical Engineering from the University of Nottingham Malaysia in year 2011. In the same year, she received the Dean's Scholarship from the University of Nottingham Malaysia to pursue her PhD studies. For her PhD research, she had analysed the effects of unsaturation levels on the in-cylinder behaviours of ignition, combustion, soot formation/oxidation and other engine-out emissions for different biodiesel feedstocks, using Computational Fluid Dynamics (CFD). She had also successfully formulated generic models of reduced chemical kinetics and thermo-physical properties for accurate and high fidelity CFD modelling applications of various in-cylinder combustion phenomena.

Research Focus

Dr Xinwei Cheng is experienced in the development of reduced chemical kinetics of diesel and alternative fuels such as biodiesel, ethanol and iso-pentanol for high fidelity and efficient CFD modelling applications. She then integrates the reduced mechanisms into commercial CFD software to elucidate vital processes in different internal combustion setups. Currently, Dr Cheng is working in various research projects regarding combustion of natural gases (methane, propane), hydrogen fuel as well as jet A1 fuel. She welcomes PhD students. 

Expertise related to UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

  • SDG 7 - Affordable and Clean Energy
  • SDG 13 - Climate Action


  • TJ Mechanical engineering and machinery
  • chemical kinetics
  • computational fluid dynamics (CFD)
  • Hydrogen
  • diesel fuel
  • hydrotreated renewable diesel
  • internal combustion engines
  • spray/flame structures
  • soot/NOx emissions
  • biodiesel fuel
  • alcohol fuel


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