Convergence Order Prediction of CVFEM Solutions Using the Richardson Extrapolation Method on Unstructured Grids

Abstract

In this work, our proposed idea is based on using the Richardson Extrapolation (RE) method for predicting convergence the pth order solution on unstructured grids [1]. Practically, we want to analyze the variation the convergence order compared the solution accuracy numerically of the Control Volume Finite Element Method (CVFEMs) [2, 3]. To this effect, the proposed model a two-dimensional solving Navier-Stokes (NS) equations coupled with the energy equation, with an irregular domain using six cases different unstructured meshes. All the numerical results are presented and discussed; they have been obtained from our code FORTRAN program.