DISCUSSION ON GRID SIZE AND COMPUTATION DOMAIN IN CFD SIMULATION OF PEDESTRIAN WIND ENVIRONMENT AROUND BUILDINGS

摘要：

With the rapid development of computers and CFD, pedestrian level wind study using CFD has become important in engineering design in recent years. In the United Kingdom, wind study is now a common engineering practice and a mandatory documentation for plan authority. The paper presents preliminary CFD simulation of pedestrian wind environment around buildings of typical configuration, size and orientation. The results were compared for flow pattern and the wind velocity amplification value at the pedestrian level, a horizontal surface 1.5 m above ground. The grid size and computation domain independent results were obtained when the grid size in the pedestrian level is less than 1.0 m and the computation domain dimensions are greater than five times the height of buildings under the conditions.

关键词： Wind study CFD Grid size Computation domain

作者: Wei Zhong Xiang Hua Sheng Wang

作者单位: Hoare Lea Consulting Engineers, Royal Exchange, Cross Street, Manchester, M2 7FL, UK. School of Engineering and Materials Science, Queen Mary, University of London, Mile End Road, London

会议类型: 国际会议

会议名称: 第10届建筑模拟国际会议

会议地点: 北京

会议语种:英文

在线出版日期: 2007-09-03（万方平台首次上网日期，不代表论文的发表时间）