Dr. Kuochen Tsai （ 蔡国桢 ）: Kuochen has a Ph.D. in mechanical engineering and has been working in the area of fluid dynamics modeling for the past 20 years. His work spans from fundamental research of turbulent reacting flows to applications of CFD models to industrial problems of polymeric flows, crystallization, burner design, sand transport, hydraulic fracturing and oil reservoir flows. He is a pioneer in applying Monte-Carlo PDF methods to polymer reactor design and the use of Lagrangian model for dense slurry flows. His recent works involve the improvement of computational models to predict proppant transport in hydraulic fracturing and the study of water droplet dispersion in subsea oil productions. He has authored more than 40 research papers for scientific journals and conferences. He started his career as a software developer for combustion applications at Cornell University, then a senior specialist at Dow Chemical Company and currently a researcher at Shell International E&P.