Novel Outflow Boundary Conditions for Spectral Direct Numerical Simulation of Rotating Flows

摘要

In this paper we introduce new outlet boundary conditions to simulate 3D rotating flows within an interdisk cavity. The boundary conditions have been implemented in a multidomain pseudo-spectral algorithm and a quantitative method has been developped to qualify them. Numerical results show a reduction of about 50 % of the refracted wave amplitude compared to the convective boundary conditions that are commonly used.