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Gust Acoustics Computation with a Space-Time CE/SE Parallel 3D Solver (2002)

Chang, S. C. ; Reddy, D. R. ; Himansu, A. ; [et al.]

In: CASI

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Publication Date: 2019-07-10

Description: The benchmark Problem 2 in Category 3 of the Third Computational Aero-Acoustics (CAA) Workshop is solved using the space-time conservation element and solution element (CE/SE) method. This problem concerns the unsteady response of an isolated finite-span swept flat-plate airfoil bounded by two parallel walls to an incident gust. The acoustic field generated by the interaction of the gust with the flat-plate airfoil is computed by solving the 3D (three-dimensional) Euler equations in the time domain using a parallel version of a 3D CE/SE solver. The effect of the gust orientation on the far-field directivity is studied. Numerical solutions are presented and compared with analytical solutions, showing a reasonable agreement.

Keywords: Acoustics

Type: ICCFD: 2nd International Conference in Computational Fluid Dynamics; Unknown

Format: application/pdf

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