Professor Yu is a world-leading scientist in particle/powder technology and process metallurgy. He is recognised as an authority in areas such as particle packing, particulate and multiphase flow/processing, and simulation modelling. He has published extensively and influentially in international journals and conference proceedings, made many significant contributions in particulate technology and process metallurgy, and successfully established a world-respected research force that is responsive to Australian needs in the resource, energy, process and allied industries. His work has led to significant economic benefit in steel and mineral industries in Australia.