同济大学学报(自然科学版)2013,Vol.41Issue(7):961-969,9.DOI:10.3969/j.issn.0253-374x.2013.07.001
工程结构雷诺数效应的研究进展
Research Progress of Reynolds Number Effect of Engineering Structures
摘要
Abstract
The Reynolds number effect of engineering structures has always been a fundamental problem in wind engineering.With the increasing of the building height and the bridge span,the wind resistance research needs to be more precise,which makes the Reynolds number effect becoming more and more significant.This paper presents an overview of the basic research achievements and the engineering applications of circular cylinder,rectangular prism and bridge models.The related contents include the surface pressure distribution,the three component forces coefficients,the Strouhal number,the fluctutating pressure and the fluctutating wind force.Two methods of high Reynolds number effect simulation in low Reynolds-wind tunnels are summarized,for instance,changing model surface roughness and increasing the flow turbulence.Finally,some recommendations for future researches are put forward.关键词
桥梁模型/圆柱体结构/矩形结构/雷诺数效应Key words
bridge model/ circular cylinder/ rectangular prism/ Reynolds number effect分类
建筑与水利引用本文复制引用
顾明,王新荣..工程结构雷诺数效应的研究进展[J].同济大学学报(自然科学版),2013,41(7):961-969,9.基金项目
国家自然科学基金重大研究计划(90715040) (90715040)