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A Fast Multigrid Method For Solving Incompressible Hydrodynamic Problems With nee Surfaces
Fast Multigrid Method Solving Incompressible Hydrodynamic Problems nee Surfaces
2015/7/1
Partial support for this work Was Provided through ONR Grant N00014-89-J-1366 and DAWA Grant N00014-89-J-0759, This support is gratefully acknowledged by the authors.
p-multigrid方法的基本思想是:在保证收敛结果为高阶精度的同时,利用低阶精度格式耗散大的特点,来改善高精度有限差分格式在迭代计算时收敛速度慢的弱点。本文基于5阶精度WCNS-E-5差分格式,引入1阶精度迎风格式和3阶精度加权格式,构造了p-multigrid方法,在迭代过程中采用了V循环、W循环、S循环、Pre_V和FMG循环等不同方式来应用这三种格式,并通过典型算例考察了这些循环方式对收...