Performance and accuracy of a modified full multigrid algorithm for fluid flow and heat transfer

摘要

This article aims to assess the performance of a new fall multigrid algorithm in which there is no restriction procedure for variables except for residuals. It simplifies the multigrid strategy and the structure of program. This:is algorithm is used in combination with the SIMPLE algorithm to solve fluid flows with heat transfer, using collocated grids and higher-order schemes for convective fluxes. Accurate solutions are obtained for lid-driven flow, natural convection in a cavity, and natural convection in an eccentric annulus. [References: 26]