Implicit Application of Non-Reflective Boundary Conditions for Navier-Stokes Equations in Generalized Coordinates

Abstract

The non-reflective boundary conditions for Navier-Stokes equations originally suggested by Poinsot and Lele[1] in Cartesian coordinates are extended to generalized coordinates. The boundary conditions are implicitly coupled with the Navier-Stokes flow solver in the inner domain. The calculations are conducted for a subsonic vortex propagating flow and the steady and unsteady transonic inlet-diffuser flows. The results indicate that the present method is accurate and robust, and the non-reflective boundary conditions are essential for unsteady flow calculations.

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Cite this paper

@inproceedings{ChenImplicitAO, title={Implicit Application of Non-Reflective Boundary Conditions for Navier-Stokes Equations in Generalized Coordinates}, author={Xiangying Chen and Gecheng Zha} }