September 1995 - July 1998
Principal investigator: Qingyan Chen
Research Assistant: Weiran Xu
Sponsor: National Science Foundation
Formulation of the new model
Accurate prediction of air movement in a room is indispensable for designing high-quality ventilation systems. The computational-fluid- dynamics (CFD) technique can be used to calculate the distributions of air velocity, temperature, turbulence, and contaminant concentrations in a room. However, the computed results sometimes disagree with experimental data. In order to improve the performance of the CFD technique, we have developed a new turbulence model that can be used for accurate prediction of natural, forced, and mixed convection in rooms.