Validation of computational aeroacoustics
Escobar Ramos ME, Hahn C, Kaltenbacher M, Ali I, Becker S (2006)
Publication Type: Conference contribution
Publication year: 2006
Publisher: Curran Associates, Inc.
Edited Volumes: 13th International Congress on Sound and Vibration 2006, ICSV 2006
City/Town: New York
Book Volume: 7
Pages Range: 5994-6001
Conference Proceedings Title: 13th International Congress on Sound and Vibration 2006 (ICSV 13)
Event location: Wien, Österreich
ISBN: 9781627481502
Abstract
The aim of this paper is to present experimental and numerical investigations performed for the case of the flow around a square cylinder mounted on a wall. Our numerical scheme is based on a finite element (FE) formulation of Lighthill's analogy for the computation of flow induced noise. The flow is computed by a CFD code using the finite volume method (FVM) and the inhomogeneous wave equation according to Lighthill's analogy is solved by applying a finite element method (FEM). Our formulation allows for the flow as well as for the acoustic computation an independent and, for each physical field, optimal discretization. The scheme offers the possibility of a direct coupling in time domain as well as a sequential coupling in frequency domain. Correlation measurements are carried out in a low noise windtunnel for the pressure fluctuations on the wall, velocity characteristics of the flow and the recorded far field acoustic pressures. Finally, the measured and simulated results for the flow as well as for the acoustic field are discussed.
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APA:
Escobar Ramos, M.E., Hahn, C., Kaltenbacher, M., Ali, I., & Becker, S. (2006). Validation of computational aeroacoustics. In 13th International Congress on Sound and Vibration 2006 (ICSV 13) (pp. 5994-6001). Wien, Österreich, AT: New York: Curran Associates, Inc..
MLA:
Escobar Ramos, Max Eduardo, et al. "Validation of computational aeroacoustics." Proceedings of the 13th International Congress on Sound and Vibration 2006 (ICSV 2006), Wien, Österreich New York: Curran Associates, Inc., 2006. 5994-6001.
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