同济大学学报（自然科学版）2017，Vol.45Issue(1)：31-38,8.DOI:10.11908/j.issn.0253-374x.2017.01.005
群体高层建筑模型风洞试验阻塞效应的修正
Blockage Correction of Group Tall Building Models in Wind Tunnel Test
摘要
Abstract
A blockage correction method for group tall building models in the wind tunnel test is proposed based on the wake area method (WAM) applicable to the single tall building model.First,the flow patterns of group buildings and the basic assumptions are demonstrated.Then,the correction formula of the blockage effect is derived to extend WAM to the group building arrangement with two or more buildings.Finally,the parameters in the formula are fitted using the test results of typical group building arrangement,such as two and three square tall buildings with the same height,in the uniform flow.The method proposed is verified by the correction of the mean pressure coefficients of the target building in different cases.The WAM for group buildings can meet the needs of construction projects with high accuracy.关键词
阻塞效应/风洞试验/高层建筑/修正方法Key words
blockage effect/wind tunnel test/tall buildings/correction method分类
建筑与水利引用本文复制引用
黄剑,顾明..群体高层建筑模型风洞试验阻塞效应的修正[J].同济大学学报（自然科学版）,2017,45(1):31-38,8.基金项目
国家自然科学基金(91215302,90715040) （91215302,90715040）
土木工程防灾国家重点实验室自主研究课题基金(SLDRCE15-A-04) （SLDRCE15-A-04）
