Noise Prediction for Multi-Element Airfoil Based on FW-H Equation
2011 ◽
Vol 52-54
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pp. 1388-1393
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In this article, four observation points are selected in the flow field when predicting aerodynamic noise of a multi-element airfoil for both a coarser grid and a finer grid. Numerical simulation of N-S equations is employed to obtain near-field acoustic information, then far-field acoustic information is obtained through acoustic analogy theory combined with FW-H equation. Computation indicates: the codes calculate the flow field in good agreement with the experimental data; The finer the grid is, the more stable the calculated sound pressure level (SPL) is and the more regularly d(SPL)/d(St) varies.
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2014 ◽
Vol 472
◽
pp. 105-110
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2021 ◽
pp. 095440702110228
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2011 ◽
Vol 199-200
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pp. 796-800
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2018 ◽
Vol 37
(3)
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pp. 590-610
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1997 ◽
Vol 101
(5)
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pp. 3075-3075
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2007 ◽
Vol 578
◽
pp. 139-169
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