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arXiv · 2303.10377

AeroSPEED: a high order acoustic solver for aeroacoustic applications

Alberto Artoni·Paola F. Antonietti·Roberto Corradi·Ilario Mazzieri·Nicola Parolini·Daniele Rocchi·Paolo Schito·Francesco F. Semeraro
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Abstract

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.

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Alberto Artoni, Paola F. Antonietti, Roberto Corradi, Ilario Mazzieri, Nicola Parolini, Daniele Rocchi, Paolo Schito, Francesco F. Semeraro. 2023-03-18. AeroSPEED: a high order acoustic solver for aeroacoustic applications. https://arxiv.org/abs/2303.10377

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