We propose AeroSPEED, a solver based on the Spectral Element Method (SEM) that solves the aeroacoustic Lighthill's wave equation. First, the fluid solution is computed employing a cell centered Finite Volume method. Then, AeroSPEED maps the sound source coming from the flow solution onto the acoustic grid, where finally the Lighthill's wave equation is solved. An ad-hoc projection strategy is adopted to apply the flow source term in the acoustic solver. A model problem with a manufactured solution and the Noise Box test case are used as benchmark for the acoustic problem. We studied the noise generated by the complex flow field around tandem cylinders as a relevant aeroacoustic application. AeroSPEED is an effective and accurate solver for both acoustics and aeroacoustic problems.

翻译：我们提出AeroSPEED，一种基于谱元法（SEM）求解气动声学Lighthill波动方程的求解器。首先，采用以单元为中心的有界体积法计算流体解。然后，AeroSPEED将来自流动解的声源映射到声学网格上，最后在此网格上求解Lighthill波动方程。采用特制的投影策略将流动源项应用于声学求解器。采用含制造解的模型问题与Noise Box测试用例作为声学问题的基准算例。我们以串联圆柱周围复杂流场产生的噪声为相关气动声学应用进行了研究。AeroSPEED是一种对声学及气动声学问题均有效且精确的求解器。