Parallel finite element fluid analysis on an element-by-element basis

摘要

A finite element fluid analysis code, which is based on an element-by-element scheme and the matrix-storage free formulation, is developed and implemented to the massively parallel computer; KSR1. Since the element-by-element scheme coupled with the CG-type iterative solver is suitable for parallel processing, the matrix-storage free formulation will enable the large-scale computation within a reasonable time. After the verification of the code by some numerical examples, the cavity flow and cylinder flow, the parallel efficiency is discussed. In the analysis of cavity flow, the speed-up using 16 CPUs is 15.35, which corresponds to the parallel efficiency of 95.9%.