충격파-와동 간섭 및 음향 방사에 대한 수치 모델

We study a conceptual numerical model on shock-vortex interaction setting an impulsive shock in a compressible vortex. Navier-Stokes equations are solved for the investigation of interactive structure and acoustic wave propagation. The rotationally symmetric vortex enforces two compression-expansion pairs resultantly fanning a quadrupolar shape. These compressive and expansive waves cylindrically propagate to the far field and turn to acoustic Waves. Using a fine uniform Cartesian grid system and a TVD-high resolution method, the flow data are precisely obtained to extend our interest to the sound source.