REYNOLDS NUMBER EFFECTS IN TALL BUILDING WIND TUNNEL TESTS

作     者：Cheng Zhao Shi Zong-cheng Zhang Feng(State Key Lab. for Disaster Reduction in Civil Eng., Tongji Univ Shanghai 200092, P.R. China) 

作者机构：Tongji Univ Shanghai China 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：1996年第8卷第4期

页      面：56-62页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Reynolds Number Effect wind tunnel simulation nows around building 

摘      要：In wind tunnel tests of tall building models comprised of rounded or streamlined surfaces, Reynolds Number Effects (RNE) may be remarkable. In most researches and projects, owing to the presence of sharp edged corners at model, RNE was often treated as negligible, and data colleCted in subcritical flow regime were applied directly to designs which were sure to be supercritical without any modification. But it was proved necessary to take RNE into consideration when a model had predominant rounded smooth surface(s). Some research activities were devoted to the mentioned condition and two experimental techniques accompanied by two wind tunnel model tests were introduced in the article. The authors also presented some amusing phenomenon such as extremely low pressure coefficients caused by the separating bubbles when now past sharp edged corners, unsymmetrical pressure coefficient distributions commenced by biased gap f low (seen Figs. 3, 4) while models were placed symmetrically in the approaching flow.