Adaptive finite element strategy for acoustic problems

Abstract

A h-adaptive finite element strategy for acoustic problems is presented. The key features of the strategy are error estimation, adaptive mesh generation and remeshing, finite element analysis. The error estimation has been performed using the superconvergent patch recovery technique for prime variables of finite element approximation (SPRD). For adaptive mesh generation and remeshing, the commercial software package I-DEAS has been applied. Finite element analysis has been performed using commercial software package SYSNOISE. Numerical examples are shown to illustrate the properties of the SPRD technique and the procedure of the proposed adaptive strategy.