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| 大型煤气柜风荷载的风洞试验及数值模拟 | |
| 引用本文： | 张冬兵,梁枢果,陈寅,李茂新.大型煤气柜风荷载的风洞试验及数值模拟[J].实验流体力学,2010,24(6). |
| 作者姓名： | 张冬兵 梁枢果 陈寅 李茂新 |
| 作者单位： | 1. 武汉大学土木建筑工程学院,武汉,430072 2. 中南电力设计院,武汉,430071 3. 中冶南方工程技术有限公司,武汉,430223 |
| 基金项目： | 国家自然科学基金重大研究计划资助项目(90715023) |
| 摘 要： | 对某大型煤气柜进行了风洞测压试验及风压数值模拟。分析了试验模型表面风压分布及其脉动特性,并同数值计算结果、规范条文中类似断面结构的风压分布作对比。结果表明:风洞试验中由于结构表面分布的工字钢及表面粗糙度的处理,雷诺数效应对表面风压分布影响并不明显,但对表面绕流场分离区的风压值有一定影响。结构的均方根升力、阻力系数在频域表现为宽带谱;采用基于雷诺平均的RNGk-ε湍流模型能较准确地模拟表面平均风压分布,其计算结果同样可为结构抗风设计提供参考;在不同量级雷诺数下数值模拟得到的平均风压分布能反映出雷诺数效应的影响。 |
| 关 键 词： | 储气结构 风荷载 风洞试验 数值模拟 雷诺数效应 |
Wind tunnel test and numerical simulation of wind loads on huge gas tank |
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| ZHANG Dong-bing,LIANG Shu-guo,CHEN Yin,LI Mao-xin.Wind tunnel test and numerical simulation of wind loads on huge gas tank[J].Experiments and Measur in Fluid Mechanics,2010,24(6). | |
| Authors: | ZHANG Dong-bing LIANG Shu-guo CHEN Yin LI Mao-xin |
| Institution: | ZHANG Dong-bing1,LIANG Shu-guo1,CHEN Yin2,LI Mao-xin3(1.School of Civil and Building Engineering,Wuhan University,Wuhan 430072,China,2.Central Southern China Electric Power Design Institute,Wuhan 430071,3.WISDRI Engineering and Research Incorporation Limited,Wuhan 430223,China) |
| Abstract: | Wind tunnel test and computational fluid dynamics(CFD) numerical simulation have been carried out to acquire wind pressure distributions on a huge gas tank.Surface aerodynamic pressures obtained by wind tunnel test are analyzed,and are compared with those from numerical calculation and relevant design codes.The results indicate that the effect of Reynolds number on wind tunnel data is not obvious because of H-beam distributed on the structural surface and disposed surface roughness,and it does somewhat infl... |
| Keywords: | gas tank wind loads wind tunnel tests numerical simulation Reynolds number effect |
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