R. Abgrall, H. Alcin, H. Beaugendre, C. Dobrzynski, L. Nouveau. 基于非结构自适应网格和嵌入边界法的残差格式研究[J]. 空气动力学学报, 2016, 34(2): 214-223. DOI: 10.7638/kqdlxxb-2016.0010
引用本文: R. Abgrall, H. Alcin, H. Beaugendre, C. Dobrzynski, L. Nouveau. 基于非结构自适应网格和嵌入边界法的残差格式研究[J]. 空气动力学学报, 2016, 34(2): 214-223. DOI: 10.7638/kqdlxxb-2016.0010
R. Abgrall, H. Alcin, H. Beaugendre, C. Dobrzynski, L. Nouveau. Residual Schemes Applied to an Embedded Method Expressed on Unstructured Adapted Grids[J]. ACTA AERODYNAMICA SINICA, 2016, 34(2): 214-223. DOI: 10.7638/kqdlxxb-2016.0010
Citation: R. Abgrall, H. Alcin, H. Beaugendre, C. Dobrzynski, L. Nouveau. Residual Schemes Applied to an Embedded Method Expressed on Unstructured Adapted Grids[J]. ACTA AERODYNAMICA SINICA, 2016, 34(2): 214-223. DOI: 10.7638/kqdlxxb-2016.0010

基于非结构自适应网格和嵌入边界法的残差格式研究

Residual Schemes Applied to an Embedded Method Expressed on Unstructured Adapted Grids

  • 摘要: 嵌入边界法由于在求解NS方程时能够简化网格生成问题而在计算流体领域受到越来越广泛的关注。简言之,嵌入边界法能够简化大变形和运动条件下多物理流动模拟、流固相互作用耦合问题,然而壁面边界条件的精确处理仍旧是该方法需要解决的问题。在本文工作中,为考虑壁面边界条件而在NS方程中增加了补偿项,同时采用非结构网格自适应技术保持了壁面边界条件的精度。

     

    Abstract: The interest on embedded boundary methods is increasing in Computational Fluid Dynamics because they simplify the mesh generation problem when dealing with the Navier-Stokes equations. To give a few examples, they simplify the simulation of multi-physics flows, the coupling of fluid-solid interactions in situation of large motions or deformations. Nevertheless an accurate treatment of the wall boundary conditions remains an issue of the method. In this work, a penalty term added to the Navier-Stokes equations accounts for the wall boundary conditions and accuracy is recovered using mesh adaptation, thanks to the potential of unstructured meshes.

     

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