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首页> 外文会议>International Conference on Fracture and Strength of Solids >Numerical Study on Aeolian Sand Ripples Forming and Moving Process in Desert Highway
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Numerical Study on Aeolian Sand Ripples Forming and Moving Process in Desert Highway

机译：沙漠高速公路中海湾砂涟漪形成和移动过程的数值研究

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In this paper, the sand break into highway problem in desert, which is caused by the sand flow blown by wind, is studied. The mathematical models are introduced by considering the fixed, semi-fixed and free sand desert fields based on the fluid dynamics and the sand particle dynamics. Different kinds of numerical models are made by changing the desert highway height, wind flow direction and its uniformity. The weak coupling method is used due to spatial relationships between air flow field and the sand flow field. Finally, by coupling the airflow field and sand flow field with desert highway, the numerical simulations of sand forming process on desert highway are conducted. The numerical results shown, that the wind blown sand breaks into highway easier when wind direction perpendicular highway and if the highway height higher than the range size of the sand surface the wind blown sand break into highway is more difficult.
机译：在本文中，研究了沙漠中的砂闯入沙漠中的公路问题，这是由风吹的沙漏引起的。通过考虑基于流体动力学和砂粒子动力学的固定，半固定和自由沙漠场来介绍数学模型。通过改变沙漠公路高度，风流向及其均匀性来制造不同类型的数值模型。由于空气流场和砂流场之间的空间关系，使用弱耦合方法。最后，通过将气流场和沙漠高速公路耦合，进行了沙漠公路砂成型过程的数值模拟。所示的数值结果，当风向垂直高速公路和高速高于砂表面的范围大小的高速高度高于砂表面的距离砂突破进入高速公路时，风吹砂变成高速公路。

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