摘要
在考虑冷却塔群塔和周围复杂建筑物场地条件下,通过冷却塔表面刚体测压试验,研究了双曲线型圆截面冷却塔表面雷诺数效应模拟、冷却塔表面气动压力分布特征;基于等效阻力系数表达式,研究了几种典型多塔组合工程场地条件下,群塔相对于单塔的等效风荷载比例系数,并进一步分析了冷却塔在最不利吹风工况中,位移、主拉、压应力分布关系。
In the process of external aerodynamic pressure wind-tunnel tests of cooling towers which is of hyperbolic configuration and circle-shape section, the effect of Reynolds number is firstly simulated, then surface aerodynamic pressure distribution of several neighbored cooling towers are obtained, basing on ＂equivalent＂ drag expression, more attention is focused on equivalent wind loading ratio coefficients about cooling towers combination versus single tower. Under the worst condition, the values about displacement, stress, etc. along the height of cooling towers are illustrated with some conclusions.
出处
《实验流体力学》
EI
CAS
CSCD
北大核心
2007年第2期56-62,共7页
Journal of Experiments in Fluid Mechanics
基金
国家自然科学基金重点项目(50538050)
国家自然科学基金青年基金项目(50408035)
关键词
冷却塔
压力测量
风洞试验
群塔效应
雷诺数效应
cooling tower
pressure measurement
wind-tunnel test
several towers effect
Reynolds number effect
