スーパーコンピュータを用いたステアリングシステムによる角柱から放射される空力音の数値解析

概要

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This paper describes extensive computer simulation for aerodynamic noise radiated from a square cylinder using an interactive steering supercomputing simulation system. The unsteady incompressible three-dimensional Navier -Stokes equations are solved by the the finite volume method using a steering system which can visualize the numerical process during calculation and alter the numerical parameter. Using the fluctuating surface pressure of the square cylinder, the far-field sound pressure is calculated based on Lighthill-Curle's equation. The results are compared with those of low noise wind tunnel experiments, and good agreement is observed for the peak spectrum frequency of the sound pressure level.
一般社団法人日本機械学会の論文
1995-03-25