Host: Japan Association for Wind Engineering
Pages 153-154
The present paper discusses the flow field around a long-span flat roof, based on a computational fluid dynamics (CFD) simulation. The simulation is conducted by using uniform flow because a roof vibration will be occurred in low turbulence flow. First, distributions of mean and RMS fluctuating wind pressure coefficient are computed and compared with the previous experimental data. Then, wind velocity, vorticity and phase lag are investigated in order to make clear the mechanisms of separated and reattached flow around the roof.
