A paralell algebraic multigrid method for full coupled multiphase flow problem

摘要

In this paper, A new parallel scheme in conjunction with an algebraic multigrid algorithm, block iteration technique and multifrontal method is developed to solve fully coupled multiphase problem involving heat and mass transfer in deforming porous media. The mathematical model makes use of the modified effective stress concept together with the capillary pressure relationship and takes phase change and latent heat transfer into account. A parallel program is developed on Dawning Tiangchao (1000A) parallel computer. The PVM (Parallel Virtual Machine) system is used to handle communications among processors. Numerical examples are given to demonstrate the speedup and efficiency of this method.