Development and validation of a computational methodology for the calculation of fluid-structure-acoustic interactions on a simplified car model

Seidler M, Nusser K, Becker S (2019)

Publication Type: Conference contribution

Publication year: 2019

Publisher: SOCIEDAD ESPANOLA DE ACUSTICA - Spanish Acoustical Society, SEA

Conference Proceedings Title: INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering

Event location: Madrid ES

ISBN: 9788487985317

Abstract

In the sound spectrum of passenger cars, the turbulence development behind the side mirror is a highly significant process, as the interactions of the turbulent structures with the side window lead to vibration and thus to sound radiation into the vehicle interior. Therefore, the understanding of the coupling of exterior flow, structural vibration and sound propagation is crucial for a simulative reproduction and the realistic prediction of the perceptible sound spectrum inside the vehicle. While previous investigations focused mainly on isolated aspects of the described test case, this study aims at the introduction of a complete simulative methodology, which also includes the window clamping elasticity and the acoustic properties of the vehicle interior. The main challenge lies in the implementation of the coupling strategy, as the accuracy of the fluid-structure-acoustic interaction at the side window is essential for the result quality. Considering different coupling approaches a one-way data transfer between flow and structure is chosen, while the acoustic propagation is fully coupled to the window vibration through a calculation in the frequency domain. The simulation results are in good accordance with wind tunnel measurements, but also show local deviations, which are subject to a final discussion.

Authors with CRIS profile

Marcel Seidler Lehrstuhl für Prozessmaschinen und Anlagentechnik (iPAT) Katrin Nusser Lehrstuhl für Prozessmaschinen und Anlagentechnik (iPAT) Stefan Becker Lehrstuhl für Prozessmaschinen und Anlagentechnik (iPAT)

How to cite

APA:

Seidler, M., Nusser, K., & Becker, S. (2019). Development and validation of a computational methodology for the calculation of fluid-structure-acoustic interactions on a simplified car model. In Antonio Calvo-Manzano, Ana Delgado, Antonio Perez-Lopez, Jose Salvador Santiago (Eds.), INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering. Madrid, ES: SOCIEDAD ESPANOLA DE ACUSTICA - Spanish Acoustical Society, SEA.

MLA:

Seidler, Marcel, Katrin Nusser, and Stefan Becker. "Development and validation of a computational methodology for the calculation of fluid-structure-acoustic interactions on a simplified car model." Proceedings of the 48th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2019 MADRID, Madrid Ed. Antonio Calvo-Manzano, Ana Delgado, Antonio Perez-Lopez, Jose Salvador Santiago, SOCIEDAD ESPANOLA DE ACUSTICA - Spanish Acoustical Society, SEA, 2019.

BibTeX: Download