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| Large eddy simulation of atmospheric boundary layer flow based on FLUENT |
| Received:June 12, 2011 Revised:December 01, 2011 |
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| DOI：10.7511/jslx20125016 |
| KeyWord:structure engineering wind resistant large eddy simulation atmospheric boundary layer flow pseudo-periodic boundary condition |
| Author | Institution |
| 王婷婷 |
北京交通大学 土木建筑工程学院, 北京 |
| 杨庆山 |
北京交通大学 土木建筑工程学院, 北京 |
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| Abstract: |
| A method combining with the pseudo-periodic boundary condition,the roughness elements and random disturbance for large eddy simulation of atmospheric boundary layer flow is described in the paper.The possible parameters influencing the simulation results such as the grid density,the extraction position,the roughness element height and the random number assignment are analyzed.Atmospheric boundary layer flows in four types of terrains are produced through modifying the above influencing parameters.The results got in the paper agree well with desired characteristics and can be adopted as the inflow conditions for the large eddy simulation of flow around buildings. |