The Comparative Study of the Convergence Method Based on Unstructured Grid System

This article discusses the application of different implicit methods on unstructured grid computing through the data structure of unstructured grid. In this article, we investigated three methods which are Guass-Seidel,LU-SGS(Lower-Upper Symmetric Gauss-Seidel)and GMRES (Generalized Minimum Residual) with pre-processing and two kinds of process technologies, including all the none-zero element Jacobi matrix and approximate treatment Jacobi matrix multiplication. Our overriding concern is the computation efficiency and memory overheads of different methods in research.