Computational aeroacoustics of a generic side view mirror using Stress Blended Eddy Simulation

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CHODE, K., VISWANATHAN, Harish and CHOW, K. (2020). Computational aeroacoustics of a generic side view mirror using Stress Blended Eddy Simulation. [Pre-print] (Unpublished)

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Official URL: https://arxiv.org/abs/2007.12783
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Abstract

This paper presents a numerical investigation of aerodynamic noise generated by a generic side-view mirror mounted on a flat plate using the Stress Blended Eddy Simulation (SBES) coupled with the Ffowcs Williams and Hawkings (FW-H) equation. A grid evaluation study was performed using a standardised side-view mirror with a Reynolds Number (Re) of 5.2 x10^5 based on the diameter of the model. The predictions for hydrodynamic pressure fluctuations on the mirror, the window and the sound emitted at various microphone locations are in good agreement with previously published experimental data. In addition, our numerical results indicate that yawing the mirror closer to the side window results in the flow being attached to the rear of the mirror resulting in an overall reduction in Sound Pressure Level (SPL) at several receiver locations.

Item Type: Pre-print
Additional Information: 3 Figures, 2 Tables
Uncontrolled Keywords: physics.flu-dyn; physics.flu-dyn
SWORD Depositor: Symplectic Elements
Depositing User: Symplectic Elements
Date Deposited: 05 Sep 2023 15:42
Last Modified: 11 Oct 2023 12:01
URI: https://shura.shu.ac.uk/id/eprint/32136

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