Evaluation of Acoustic Simulation Using Wave Equation Finite Difference Time Domain Method with Compact Finite Differences

Naoki Kawada; Takeshi Yoda; Norio Tagawa; Takao Tsuchiya; Kan Okubo

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Evaluation of Acoustic Simulation Using Wave Equation Finite Difference Time Domain Method with Compact Finite Differences

机译：带有有限差分的波动方程有限差分时域法评估声学模拟

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In this study, we examine the acoustic simulation method combining the wave equation finite difference time domain (WE FD-TD) method and compact FDs (CPFDs) for the second derivative. The wave equation compact finite difference time domain (WE CPFD-TD) method does not require calculation of the particle velocity; therefore, it can reduce the calculation time and memory used. Furthermore, for acceleration of simulation, we employ the recursive filtering algorithm and graphics processing unit (GPU) computing. As a result, we clarified that the three-dimensional WE CPFD-TD acoustic simulation using GPU is ca. 25-30 times faster than that using CPU with OpenMP.

机译：在这项研究中，我们研究了结合波动方程有限差分时域（WE FD-TD）方法和紧凑型FD（CPFD）的二阶导数的声学模拟方法。波动方程紧凑时域有限差分法（WE CPFD-TD）不需要计算粒子速度。因此，它可以减少计算时间和使用的内存。此外，为了加速仿真，我们采用了递归过滤算法和图形处理单元（GPU）计算。结果，我们澄清了使用GPU进行的三维WE CPFD-TD声学模拟约为。比使用带有OpenMP的CPU快25-30倍。

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《Japanese journal of applied physics》 |2012年第7issue2期|p.07GG06.1-07GG06.2|共2页
作者
Naoki Kawada; Takeshi Yoda; Norio Tagawa; Takao Tsuchiya; Kan Okubo;
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Graduate School of System Design, Tokyo Metropolitan University, Hino, Tokyo 191-0065, Japan;

Graduate School of System Design, Tokyo Metropolitan University, Hino, Tokyo 191-0065, Japan;

Graduate School of System Design, Tokyo Metropolitan University, Hino, Tokyo 191-0065, Japan;

Department of Information Systems Design, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan;

Graduate School of System Design, Tokyo Metropolitan University, Hino, Tokyo 191-0065, Japan;

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Evaluation of Acoustic Simulation Using Wave Equation Finite Difference Time Domain Method with Compact Finite Differences

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