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1 Computer Assisted Mechanics and Engineering Sciences

1 1998

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Parallel iterative computational methods for 3D finite element flow simulations

Kalro V., Tezduyar T.

Computer Assisted Mechanics and Engineering Sciences

1998

Vol. 5, nr 2

173-183

In this paper we discuss sparse matrix computational methods, and their parallel implementations, for evaluating matrix-vector products in iterative solution of coupled, nonlinear equations encountered in finite element flow simulations. Based on sparse computation schemes, we introduce globally-defined preconditioners by mixing clustered element-by-element preconditioning concept with incomplete factorization methods. These preconditioners are implemented on a CRAY T3D parallel supercomputer. In addition to being tested in a number of benchmarking studies, the sparse schemes discussed here are applied to 3D simulation of incompressible flow past a circular cylinder.