Multigrid fictitious boundary method for incompressible viscous flows around moving airfoils
Multigrid fictitious boundary method for incompressible viscous flows around moving airfoils
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DOI：
10.1007/s11804-007-7008-2
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发表时间：
2007-06
影响因子：
1.8
通讯作者：
D. Wan
中科院分区：
文献类型：
--
作者：
D. Wan
在本文中，一种高效的多重网格虚拟边界方法 (MFBM) 与 FEM 求解器包 FEATFLOW 相结合，用于详细模拟一个或多个运动 NACA0012 翼型周围的不可压缩粘性流。计算在固定的多重网格有限元网格上进行，该网格处处满足流体方程，并且允许翼型在网格中自由移动。 MFBM 用于处理流体和翼型之间的相互作用。翼型的运动通过牛顿-欧拉方程进行建模。实验数值结果验证了该方法提供了一种模拟运动翼型周围不可压缩粘性流的有效方法。
In this paper, an efficient multigrid fictitious boundary method (MFBM) coupled with the FEM solver package FEATFLOW was used for the detailed simulation of incompressible viscous flows around one or more moving NACA0012 airfoils. The calculations were carried on a fixed multigrid finite element mesh on which fluid equations were satisfied everywhere, and the airfoils were allowed to move freely through the mesh. The MFBM was employed to treat interactions between the fluid and the airfoils. The motion of the airfoils was modeled by Newton-Euler equations. Numerical results of experiments verify that this method provides an efficient way to simulate incompressible viscous flows around moving airfoils.