Acoustics Simulation on Sunway TaihuLight Based on Solving the Integral of Ffowcs Williams-Hawkings Equation

摘要

In this paper, we use the Ffowcs Williams-Hawkings (FW-H) equation of the penetrable surface to simulate the acoustic radiation problem of a monopole source in a three-dimensional uniform flow. In addition, parallel optimization was performed on the Sunway TaihuLight. Compared with the Intel CPU, the ideal acceleration effect was obtained. And the method of dividing the time window was used, which solved the shortage of the local data memory space of the slave core in the calculation process, achieved the local coupling calculation of the sound source and far-field sound pressure, and obtained ideal results. It is verified that the parallel algorithm has a good acceleration effect and scalability on the Sunway TaihuLight.