On the application of slip boundary condition on curved boundaries
On the application of slip boundary condition on curved boundaries
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滑移边界条件在弯曲边界上的应用
DOI：
10.1002/fld.663
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发表时间：
2004
影响因子：
1.8
通讯作者：
M. Behr
中科院分区：
文献类型：
--
作者：
M. Behr
液体晃动现象的流体动力学模拟通常涉及在湿表面处施加滑移边界条件。如果这些表面是弯曲的，离散化问题中法向量的模糊性会干扰这种边界条件的应用。即使从守恒的观点出发，使用一致的法向量，也不能保证在离散问题中很好地近似连续滑移条件，并且可能观察到非物理的再循环流场。作为补救措施，我们考虑了Navier滑移条件，更成功的是，所谓的BC自由边界条件。版权所有© 2004年约翰威利父子有限公司。
Hydrodynamic simulations of sloshing phenomena often involve the application of slip boundary condition at the wetted surfaces. If these surfaces are curved, the ambiguous nature of the normal vector in the discretized problem can interfere with the application of such a boundary condition. Even the use of consistent normal vectors, preferred from the point of view of conservation, does not assure good approximation of the continuum slip condition in the discrete problem, and non‐physical recirculating flow fields may be observed. As a remedy, we consider the Navier slip condition, and more successfully, the so‐called BC‐free boundary condition. Copyright © 2004 John Wiley & Sons, Ltd.