Nonreflecting boundary conditions and numerical simulation of external flows

Abstract

The specification of conditions on artificial boundaries of the computational domain in the simulation of subsonic viscous gas flows is considered. The steps in the construction and implementation of nonreflecting boundary conditions on the path from one-dimensional linearized Euler equations to real-life problems are described. The technique is intended for flow simulation at low Mach numbers. Numerical results for the essentially subsonic flow over a flat plate are presented