| 风场大涡模拟中网格非匹配算法 |
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| 引用本文： | 李重阳,魏德敏,王仕统.风场大涡模拟中网格非匹配算法[J].空间结构,2010,16(4). |
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| 作者姓名： | 李重阳 魏德敏 王仕统 |
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| 作者单位： | 华南理工大学土木与交通学院; |
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| 基金项目： | 科技部重大基础研究前期研究专项项目 |
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| 摘 要： | 计算风工程中对风场进行大涡模拟是从流体角度诠释风压产生、发展、分布的数值方法.风场需分割为多个子块,并根据风活跃程度分别指定不同的网格密度,在各块界面上网格非一一匹配.本文针对:三维子块,提出了一种搜集非匹配信息的算法,用以计算子块间的风流体通量.根据结构网格规律性,将公共界面上两个子块的网格线合并为一套网格,从而将公共界面划分为小面,形成联接信息进行全场联立求解.典型算例表明可在节省计算资源的同时保证精确性,同时实现网格密度平滑过渡,为大跨度结构风场模拟解决了一个基础问题.
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| 关 键 词： | 计算风工程 多块结构网格 非匹配 风场 大涡模拟 |
Non-matching algorithm in large eddy simulation of wind field |
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| LI Chong-yang,WEI De-min,WANG Shi-tong.Non-matching algorithm in large eddy simulation of wind field[J].Spatial Structures,2010,16(4). |
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| Authors: | LI Chong-yang WEI De-min WANG Shi-tong |
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| Affiliation: | LI Chong-yang,WEI De-min,WANG Shi-tong(School of Civil and Transportation Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | Large eddy simulation in computational wind engineering investigates generation,development and distribution of wind pressure in the view of fluid.The wind field should be divided into sub-blocks which are appointed different grid density according to local wind activity.The grids do not match in common interfaces.For three-dimensional sub-blocks,an algorithm collectting connection information to calculate fluxes is proposed.According to the regularity of structural grid system,grid lines of two sub-blocks ... |
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| Keywords: | computational wind engineering multi-block structural grid non-matching wind field large eddy simulation |
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