Overview of turbulence models applied in CWE-1997

The state-of-the-art of utilizing turbulence models in wind engineering is reviewed. It is explained why CFD application to wind engineering problems is difficult. Three types of numerical methods for analyzing turbulent flow (DNS, LES, RANS model) are presented. New models and new techniques of LES are noted. Revisions of the standard k-epsilon model for adopting the bluff body aerodynamics are described. The results of RSM applied to a cubic model are shown and thus the shortcoming of this model is presented. (C) 1998 Elsevier Science Ltd. All rights reserved.