• Process engineering
• Modelling and simulation 
• Particle transportation
• Particle separation
• Reacting multiphase flow
• Microfluidics
• Non-Newtonian fluid flow
• Flow instability

Dr Kuang's research interests centre around computational process engineering. A specific focus is on the development and application of numerical models at different time and length scales, with the support of physical experiments, for the fundamental and applied research on particle-fluid flow and granular dynamics. The involved models mainly include Lattice Boltzmann method (LBM), discrete element model (DEM), population balance model, and computational fluid dynamics (CFD), CFD-DEM, LBM-DEM, two-fluid model, kinetic theory, volume of fraction (VOF). The research topics cover particle transportation (e.g. in pneumatic/hydraulic conveying, microchannel, hydraulic fracture of shale gas [proppant placement], non-Newtonian fluid system), particle separation (e.g. by sand screen, hydrocyclone, gas cyclone, dense medium cyclone, in-line pressure jig, microchannel, nanofiltration device [water purification]), multi-phase reacting flows (e.g. in metallurgical reactors for production of iron, steel, aluminium).