（湖南科技大学土木工程学院， 湘潭 411201）

［摘要］基于ANSYS软件，采用Realizable k-ε，RNG k-ε和SST k-ω三种湍流模型对体型比为1.5∶1∶1低矮房屋模型迎风面、边缘及屋面的表面风压分布及变化规律进行数值模拟研究，数值模拟结果与同体型比的实测房屋及风洞试验结果对比表明，数值模拟结果与实测及风洞试验结论基本吻合，验证了三种湍流模型研究低矮房屋表面风压的可靠性，并对三种结果进行分析，研究结果能为国内低矮房屋设计提供有价值的参考。

［关键词］低矮房屋; 风压系数; 数值模拟; 实测

中图分类号：TU312+.1      文献标识码：A      文章编号：1002-848X(2014)10-0084-05

Numerical simulation, field measurements and wind tunnel of mean wind pressures on the low-rise building surface

Wang Xiangjun, Dai Yimin, Yan Xuguang, Liu Ye

 (College of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)

Abstract: Based on ANSYS software, the wind pressure on a model building at a geometric scale of 1.5∶1∶1 was computed with fluent models of Realizable k-ε, RNG k-ε and SST k-ω. The distribution and change law of mean wind pressures of the windward side, eaves and roof of the building were summarized. Based on the analysis of the differences between wind tunnel test, field measurements and numerical results, it is found that the results of numerical simulation agree well with wind tunnel test and field measurements. The reliability of three turbulent models was proved, and similarities and differences were analyzed. It is expected that the study results should be valuable for wind-resistance design of low-rise buildings.

Keywords: low-rise building; wind pressure coefficient; numerical simulation; field measurement

*交通运输部科技项目（2011318824140），国家自然科学基金项目（51248001），湖南科技大学项目（J11216）。

作者简介：王相军，硕士，Email: wangxiangjun_nan@126.com。

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