| 深凹露天矿内复环流和高湍能区的三维细网格非静力模拟 |
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| 引用本文： | 王卫国,蒋维楣.深凹露天矿内复环流和高湍能区的三维细网格非静力模拟[J].大气科学,1998,22(2):252-256. |
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| 作者姓名： | 王卫国 蒋维楣 |
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| 作者单位： | 南京大学大气科学系,南京 210093 |
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| 基金项目： | 大气边界层物理和大气化学国家重点实验室资助 |
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| 摘 要： | 建立了一个准定常的三维非静力能量闭合的PBL模式模拟了深凹露天矿内复环流和高湍能区。针对露天矿具有范围小、地形复杂的特点，放弃了静力近似的假定，且采用了在复杂地形下应用较好的能量闭合方案，采用细网格系统对一个水平只有2 km×2 km的实际矿区进行了模拟，并将结果与同样条件下的风洞试验结果进行了比较。结果表明，矿坑的开口宽度与深度比和来流的性质对坑内气流和湍流情况有了较大影响。
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| 关 键 词： | 三维非静力边界层模式 能量闭合 复环流 湍流能量 风洞模拟 |
A 3-Dimensional Numerical Simulation Model of Recirculation and Turbulence in Open-Air Mine with Fine-Mesh, Nonhydrostatic |
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| Wang Weiguo and Jiang Weimei.A 3-Dimensional Numerical Simulation Model of Recirculation and Turbulence in Open-Air Mine with Fine-Mesh, Nonhydrostatic[J].Chinese Journal of Atmospheric Sciences,1998,22(2):252-256. |
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| Authors: | Wang Weiguo and Jiang Weimei |
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| Abstract: | A three-dimensional nonhydrostatic atmospheric boundary-layer numerical model was used to study the characteristics of flow and turbulence in a small-scale deep open-air mine Considering small scale and complex terrain, in this model we use simple energy closure scheme without hydrostatic approximation A real case of an open-air mine, was simulated Results indicated that the ratio of mine depth to width and the inflow shear obviously affect the flow and turbulence in the pit Some results obtained from this model were in agreement with the wind tunnel experiment under the same conditions |
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| Keywords: | nonhydrostatic boundary-layer model energy closure scheme local recombination circulation turbulent kinetic energy wind tunnel experiment |
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