Dr Hassan Hemida has more than twenty years of experience in both academia and industry, running research projects that involve steady and unsteady simulations of single and multiphase flows. He obtained his PhD in Trains Aerodynamics from Chalmers University of Technology, Sweden and then worked in Epsilon Sweden for two years before moving to an academic position at Civil Engineering, University of Birmingham. Dr Hemida has led many research projects related to train aerodynamics, looking at slipstream, trains in tunnels, side-wind forces and shape optimisations. Although has focused much of his work on the aerodynamics of ground vehicles (trains, buses and road vehicles), he has conducted other successful projects that involve multiphase flow, heat transfer, combustion, mass transfer and shape optimization. His work is sponsored by RRUK, EPSRC, EU commission and industry including Network Rail, Scania and Bombardier.