Efficient Parallel Analysis of Shell-fluid Interaction Problem by Using Monolithic Method Based on Consistent Pressure Poisson Equation

Journal of Computational Science and Technology

Shigeo KANEI¹  Daisuke ISHIHARA¹  Shinobu YOSHIMURA²  Tomoyoshi HORIE¹ 

[1] Department of Mechanical Information Science and Technology, Kyushu Institute of Technology;Department of Quantum Engineering and Systems Science, University of Tokyo

关键词: Parallel Analysis;    Fluid-Structure Interaction;    Finite Element Method;    Shell;    Incompressible Viscous Fluid;    Monolithic Method;    Pressure Poisson Equation;    Conjugate Gradient Method;   

DOI  :  10.1299/jcst.2.185

学科分类：地球科学(综合)

来源: Japan Academy

【 摘 要 】

References(12)Cited-By(3)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.

【 授权许可】

Unknown