【摘要】：嵌入邊界法由于在求解NS方程時能夠簡化網(wǎng)格生成問題而在計算流體領(lǐng)域受到越來越廣泛的關(guān)注。簡言之,嵌入邊界法能夠簡化大變形和運動條件下多物理流動模擬、流固相互作用耦合問題,然而壁面邊界條件的精確處理仍舊是該方法需要解決的問題。在本文工作中,為考慮壁面邊界條件而在NS方程中增加了補償項,同時采用非結(jié)構(gòu)網(wǎng)格自適應技術(shù)保持了壁面邊界條件的精度。
[Abstract]:The embedded boundary method has attracted more and more attention in the computational fluid field because it can simplify the mesh generation problem in solving the NS equation. In short, the embedded boundary method can simplify the multi-physical flow simulation under the condition of large deformation and motion, and the fluid-solid interaction coupling problem. However, the exact treatment of the wall boundary conditions is still a problem to be solved by the method. In this paper, in order to consider the wall boundary condition, the compensation term is added to the NS equation, and the unstructured mesh adaptive technique is used to maintain the accuracy of the wall boundary condition.
【作者單位】： Universit釨t
【基金】：carried out in the frame of the investments for the future,Programme IdEx Bordeaux,CPU (ANR-10-IDEX-03-02) supported by part by SNFS grant # 200021_153604/1
【分類號】：O241.8;O35

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