Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
500780 | Computer Methods in Applied Mechanics and Engineering | 2005 | 21 Pages |
Abstract
Two preconditioners are presented for equation systems of strongly coupled fluid–structure interaction computations where the structure is modeled by shell elements. These preconditioners fall into the general category of incomplete LU factorization. The two differ mainly in whether the coefficient matrix is factorized node by node or variable-by-variable. In the variable-wise preconditioner, a modified Schur complement system for pressure is solved approximately with a few iterations using a special preconditioner. The efficiencies of the two preconditioners are compared for different finite element formulations of the fluid mechanics part, including formulations with SUPG and PSPG stabilizations.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
T. Washio, T. Hisada, H. Watanabe, T.E. Tezduyar,