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李家春, 谢正桐. 植被层湍流的大涡模拟[J]. 力学学报, 1999, 31(4): 406-415. DOI:10.6052/0459-1879-1999-4-1995-048
引用本文: 李家春, 谢正桐. 植被层湍流的大涡模拟[J]. 力学学报, 1999, 31(4): 406-415.DOI:10.6052/0459-1879-1999-4-1995-048
LARGE-EDDY SIMULATION FOR CANOPY TURBULENT FLOW[J]. Chinese Journal of Theoretical and Applied Mechanics, 1999, 31(4): 406-415. DOI:10.6052/0459-1879-1999-4-1995-048
Citation: LARGE-EDDY SIMULATION FOR CANOPY TURBULENT FLOW[J].Chinese Journal of Theoretical and Applied Mechanics, 1999, 31(4): 406-415.DOI:10.6052/0459-1879-1999-4-1995-048

植被层湍流的大涡模拟

LARGE-EDDY SIMULATION FOR CANOPY TURBULENT FLOW

  • 摘要:研究植被层湍流的大涡模拟,发展了一个TSF(transientstructurefunction)亚格于模式,尽可能真实地处理植被湍流这种既有强剪切,又有热对流的流动.我们建立了植被湍流数据库,并进行了较为详细的分析研究.湍流统计量如平均风速剖面、雷诺应力、湍流脉动能等等,与有关观测结果作了对比,符合较好.大涡模拟计算同样发现已由现场观测到的、在强对流情况时出现的温度场斜坡型有组织结构.

    Abstract:The boundary layer theory proposed by L. Prandtl in 1904 has played a tremendously important role for aeronautical and aerospace engineering during the last 100 years or so. Nowadays it has found wide applications both in industry and geophysical flows. The present paper mainly address to the turbulence in Atmospheric boundary layer (ABL) or its surface layer, which is closely related to climate and ecological environment prediction. We have reviewed on its principal numerical approaches: Reynolds average N...

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