Abstract
For the purpose of studying the finite element analysis in natural convection, we apply the finite element method to large-scale computing using the GPU. In the numerical analysis of natural convection, it is necessary to perform large-scale computing, super-computers are used. In this study, numerical analysis of natural convection analysis on the GPU. By using the method of compressed diagonal storaged(CDS) of compressed for the calculation of a sparse matrix, And reducing the random access in the FEM, we sparse matrix-vector product to speed up. Numerical examples to compute the 3-dimensional unsteady natural convection in a horizontal, and compared with the DNS data, perform the calculation accuracy.