| 桥址峡谷地貌风场特性的CFD模拟 |
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| 引用本文： | 祝志文,张士宁,刘震卿,陈政清.桥址峡谷地貌风场特性的CFD模拟[J].湖南大学学报(自然科学版),2011,38(10):13-17. |
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| 作者姓名： | 祝志文 张士宁 刘震卿 陈政清 |
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| 作者单位： | 湖南大学风工程研究中心; |
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| 基金项目： | 国家自然科学基金资助项目(50978095); 教育部长江学者和创新团队发展计划资助项目 |
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| 摘 要： | 对峡谷地貌上的大跨度桥梁而言,其桥址周围风场特性的确定可能非常困难.本文首先从Google Earth得到桥址附近大范围区域的地形图,然后借助Autocad获得区域内离散点的高程数据,再通过逆向工程软件Imageware拟合出桥址周围地形曲面.通过形成以该曲面为底面的计算域并实施网格划分,采用雷诺时均N-S方程和标准k...
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| 关 键 词： | 峡谷地貌 风场特性 CFD 大跨度桥梁 |
CFD Simulation of Wind Field at Bridge Site on Gorge Terrain |
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| ZHU Zhi-wen,ZHANG Shi-ning,LIU Zhen-qing,CHEN Zheng-qing.CFD Simulation of Wind Field at Bridge Site on Gorge Terrain[J].Journal of Hunan University(Naturnal Science),2011,38(10):13-17. |
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| Authors: | ZHU Zhi-wen ZHANG Shi-ning LIU Zhen-qing CHEN Zheng-qing |
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| Institution: | ZHU Zhi-wen,ZHANG Shi-ning,LIU Zhen-qing,CHEN Zheng-qing(Research Center of Wind Engineering,Hunan Univ,Changsha,Hunan 410082,China) |
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| Abstract: | For long-span bridges on gorge terrain,the determination of wind characteristics prevailing at bridge deck level may be a challenge.In this paper,a large bound of topography at bridge site was first obtained in Google Map.Then altitude data on discrete points of interest was extracted by Autocad.Finally,Imageware was employed to form a terrain surface.With a computational domain built with the terrain surface included,the wind field at the bridge site was numerically simulated with Reynolds-Averaged Navier-... |
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| Keywords: | gorge terrain wind characteristics CFD long-span bridges |
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