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REYNOLDS NUMBER EFFECTS IN TALL BUILDING WIND TUNNEL TESTS
引用本文:Cheng Zhao, Shi Zong-cheng, Zhang Feng(State Key Lab. for Disaster Reduction in Civil Eng.,Tongji Univ Shanghai 200092,P.R. China). REYNOLDS NUMBER EFFECTS IN TALL BUILDING WIND TUNNEL TESTS[J]. 水动力学研究与进展(B辑), 1996, 0(4)
作者姓名:Cheng Zhao   Shi Zong-cheng   Zhang Feng(State Key Lab. for Disaster Reduction in Civil Eng.  Tongji Univ Shanghai 200092  P.R. China)
作者单位:State Key Lab. for Disaster Reduction in Civil Eng.,Tongji Univ Shanghai 200092,P.R. China
摘    要:REYNOLDSNUMBEREFFECTSINTALLBUILDINGWINDTUNNELTESTSChengZhao;ShiZong-cheng;ZhangFeng(StateKeyLab.forDisasterReductioninCivilEn...


REYNOLDS NUMBER EFFECTS IN TALL BUILDING WIND TUNNEL TESTS
Cheng Zhao, Shi Zong-cheng, Zhang Feng. REYNOLDS NUMBER EFFECTS IN TALL BUILDING WIND TUNNEL TESTS[J]. Journal of Hydrodynamics, 1996, 0(4)
Authors:Cheng Zhao   Shi Zong-cheng   Zhang Feng
Abstract: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.
Keywords:Reynolds Number Effect  wind tunnel simulation  nows around building
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