Finite element nonlinear Galerkin coupling method for the exterior steady Navier-stokes problem

摘要

In this paper we represent a new numerical method for solving the steady Navier-Stokes equations in three dimensional unbounded domain. The method Consists in coupling the boundary intergral and the finite element nonlinear Galerkin Methods. An artificial smooth boundary is intrdouced seperating an interior in- Homogeneous region from an exterior one. The Navier-Stokes equations in the Exterior region are approximated by the Oseen equations and the approximate so- Lution is represented by an integral equation over the artificial boundary.