Professor Yuen's general research interests are in two-phase flow, radiation heat transfer, fire and combustion, melting/solidification heat transfer, and numerical computation.
Walter W. Yuen is a Professor of the Department of Mechanical Engineering at the University of California, Santa Barbara. He is active in ASME and AIAA. His research has been funded by NSF, NRC, DOE and NASA. In the area of radiation heat transfer and combustion, Professor Yuen had received three research grants from NSF and published over fifty journal articles. He is the originator of the generalized zonal method (GZM) and scattering mean beam length, which are essential for the development of efficient computational scheme for radiation heat transfer. He was an invited participant in a 1996 workshop on "High Performance Computing in Radiation Heat Transfer" sponsored by NSF. Professor Yuen also received funding from NASA to study the fundamentals of metal combustion in relation to oxygen safety and published actively in the area. He is also active in fire research. His is interested in the role of radiation heat transfer in flame spread, flash over and other important fire safety issues. Since 1990, Professor Yuen expanded his scope of research to Reactor Safety and the fundamentals of multi-phase flow. He is the principal researcher responsible for the development of the two computer codes, PM-ALPHA and ESPROSE.m which are the most advanced state-of-the-art numerical tools for analysis of Steam Explosion. He is a co-PI on a number of research grants from DOE and NRC and co-author on over 30 archival and conference publications in these areas. Professor Yuen's current research includes a project on cooling of opto-electronic packages, and the development of numerical models for multi-dimensional non-gray radiative heat transfer for fire safety applications.