Efficient Parallel Analysis of Shell-fluid Interaction Problem by Using Monolithic Method Based on Consistent Pressure Poisson Equation *
Efficient Parallel Analysis of Shell-fluid Interaction Problem by Using Monolithic Method Based on Consistent Pressure Poisson Equation *
复制标题
基于一致压力泊松方程的整体方法高效并行分析壳-流体相互作用问题*
DOI：
10.1299/jcst.2.185
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
T. Horie
中科院分区：
文献类型：
--
作者：
D. Ishihara;Shigeo Kanei;S. Yoshimura;T. Horie
本文提出了一种基于一致压力泊松方程（PPE）的壳-流相互作用的并行整体方法，并证明了其并行计算效率。共轭梯度（CG）方法不需要任何预条件，即使由于流体和结构之间的子矩阵元素的不均匀性和壳体结构的子矩阵的病态性，使得原耦合方程组的系数矩阵变为病态，也能很好地求解相容PPE。因此，我们的并行整体方法使用一致的PPE和CG方法没有任何预条件是有效的壳-流体相互作用问题的并行分析。目前的并行解决方案的过程是基于网格分解。为了证明所开发的方法的性能，它是适用于模拟位于一个矩形棱柱和一个扑动的弹性翼在静止流体中的唤醒弹性板的振动。
In this paper, a parallel monolithic method for shell-fluid interaction based on the consistent Pressure Poisson Equation (PPE) is developed and its parallel computational efficiency is demonstrated. The Conjugate Gradient (CG) method without any preconditioner works well to solve the consistent PPE, even though the coefficient matrix of the original coupled equation system becomes ill-conditioned due to (a) the inhomogeneity of submatrix elements between the fluid and the structure and (b) the ill-conditioned submatrix of shell structure. Thus our parallel monolithic method using the consistent PPE and the CG method without any preconditioner is efficient for parallel analyses of shell-fluid interaction problems. The present parallel solution procedure is based on the mesh decomposition. To demonstrate the performances of the developed method, it is applied to simulate the vibration of an elastic plate situated in the wake of a rectangular prism and a flapping elastic wing in quiescent fluid.
基于一致压力泊松方程的流固耦合整体方法
DOI：
--
发表时间：
2005
期刊：
Transaction of JSME : Series B Vol.71, No.706
影响因子：
--
作者：
D. Ishihara;S. Yoshimura
通讯作者：
S. Yoshimura