NUMERICAL STUDY ON THE INFLUENCE OF FLOW FIELD TO WIND LOADING ON LOW-RISE BUILDING
A CFD numerical study of wind effects on gable-roofed low-rise buildings is presented in this paper. Modified RANS based SST model with proper boundary conditions is adopted to improve numerical results. Eight different roof angles (5 degrees to 45 degrees) are selected in order to study the angles influences to both flow field and wind pressure on buildings. Detailed comparisons of pressure coefficients distribution are made between numerical results and wind tunnel test results, and flow pattern around buildings under different roof angles is also compared to disclosure how flow field influents the wind loading on structures. Compared with wind tunnel test, satisfied numerical wind loading distribution on bluff body buildings was obtained. Flow pattern around low-rise building were also successfully simulated. Wind pressure on buildings is significantly influenced by the flow pattern around it, which is proved by comparing the flow pattern under each roof angle.
Low-rise building Wind loading Flow pattern CFD
Wei-liang Zhu Qing-Shan Yang
School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, P.R.China
国际会议
第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)
长沙
英文
1625-1629
2008-10-19（万方平台首次上网日期，不代表论文的发表时间）