Fluid-structure-acoustic coupling for a flat plate

Journal article


Publication Details

Author(s): Springer M, Scheit C, Becker S
Journal: International Journal of Heat and Fluid Flow
Publication year: 2017
ISSN: 0142-727X
Language: English


Abstract


Abstract The present work deals with the aeroacoustic sound radiated by a forward–backward facing step in combination with a flexible wall behind the step. A numerical flow computation with coupled aeroacoustic and vibroacoustic simulation was carried out. The structural deformations of the oscillating plate like structure in the wake of the forward–backward facing step were considered to be small and therefore not affecting the flow field. The presented approach enables a separate consideration for the aeroacoustic as well as the structural borne noise. The influence of the interactions of the acoustic medium with the flexible structure on the vibroacoustic sound radiation is investigated. One-sided and two-sided coupling approaches for the vibroacoustic analysis are introduced. The two-sided vibroacoustic computation allows for considering the damping influence of the ambient fluid on the flexible plate vibration and therefore on the sound radiation. Additional to the simulations, aeroacoustic measurements in an acoustic wind tunnel were performed for validation purposes.



FAU Authors / FAU Editors

Becker, Stefan Prof. Dr.
Lehrstuhl für Prozessmaschinen und Anlagentechnik
Scheit, Christoph
Lehrstuhl für Prozessmaschinen und Anlagentechnik
Springer, Matthias
Lehrstuhl für Prozessmaschinen und Anlagentechnik


How to cite

APA:
Springer, M., Scheit, C., & Becker, S. (2017). Fluid-structure-acoustic coupling for a flat plate. International Journal of Heat and Fluid Flow. https://dx.doi.org/10.1016/j.ijheatfluidflow.2017.04.013

MLA:
Springer, Matthias, Christoph Scheit, and Stefan Becker. "Fluid-structure-acoustic coupling for a flat plate." International Journal of Heat and Fluid Flow (2017).

BibTeX: 

Last updated on 2018-06-06 at 14:10