This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
An Efficient Hybrid Computational Process for Interior Noise Prediction in Aeroacoustic Vehicle Development
Technical Paper
2023-01-1120
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Numerical methodologies for aeroacoustic analyses are increasingly crucial for car manufacturers to optimize the effectiveness of vehicle development. In the present work, a hybrid numerical tool based on the combination of a delayed detached-eddy simulation and a finite element model, which relies on the Lighthill’s acoustic analogy and the acoustic perturbation equations, is presented. The computational aeroacoustics is performed by the software OpenFOAM and Actran, concerning respectively the CFD and the FEM. The aeroacoustic behavior of the SUV Lamborghini Urus at a cruising speed of 140 km/h has been investigated. The main aerodynamic noise phenomena occurring in the side mirror region in a frequency range up to 5 kHz are discussed. The numerical simulations have been verified against the measurements performed in the aeroacoustic wind tunnel of the University of Stuttgart, operated by FKFS. The predicted exterior noise propagation into the far field has been validated by comparing the sound pressure level with the experimental data measured by exterior microphones, which were located outside the turbulent region beside the wake of the side mirror. Furthermore, the noise transmission into the cabin through the side window has been modeled. Simulation results have been validated by means of interior microphones installed on the driver seat. Both the exterior and the interior noise predictions show very good correlations with experiments. Lastly, a comprehensive investigation of the most critical aeroacoustic sources has been carried out. The numerical tool has been proven to be in good accordance with the microphone array with respect to the distribution of the sound pressure level in the proximity of the side mirror. Besides, the main vortex structures involved in the generation mechanisms of wind noise have been investigated by a CFD analysis. The entire CAA process has been proven to be accurate and suitable for combined analysis between the generation mechanisms of wind noise and the resulting transfer into the interior cabin to the driver’s ear as well.
Authors
Topic
Citation
Perugini, C., Riccio, U., Torluccio, A., Mohr, R. et al., "An Efficient Hybrid Computational Process for Interior Noise Prediction in Aeroacoustic Vehicle Development," SAE Technical Paper 2023-01-1120, 2023, https://doi.org/10.4271/2023-01-1120.Also In
References
- Schütz , T. Hucho - Aerodynamik des Automobils Springer Fachmedien Wiesbaden 2013
- Oettle , N. and Sims-Williams , D. Automotive Aeroacoustics: An Overview Proceedings of the Institution of Mechanical Engineers. Part D : Journal of Automobile Engineering 2017
- Tam , C.K.W. Computational Aeroacoustics: Issues and Methods AIAA Journal 1995
- Marburg , S. and Nolte , B. Computational Acoustics of Noise Propagation in Fluids - Finite and Boundary Elements Methods Berlin Heidelberg Springer 2008
- Manoha , E. , Redonnet , S. and Caro , S. Computational Aeroacoustics Encyclopedia of Aerospace Engineering , 2010
- Pietrzyk , A. , Beskow , D. , Moroianu , D. , Cabrol , M. et al. Passenger Car Side Mirror Exterior Noise Simulation and Validation The 22nd International Congress on Sound and Vibration Florence, Italy 2015
- Caro , S. , Ploumhans , P. , and Gallez , X. Implementation of Lighthill’s Acoustic Analogy in a Finite/Infinite Elements Framework 10th AIAA/CEAS Aeroacoustics Conference Manchester, UK 2004
- Caro , S. , Detandt , Y. , and Manera , J. Validation of a New Hybrid CAA strategy and Application to the Noise Generated by a Flap in a Simplified HVAC Duct 15th AIAA/CEAS Aeroacoustics Conference Miami, Florida 2009
- Ganty , B. , Jacqmot , J. , Zhou , Z. , and Jeong , C. Numerical Simulation of Noise Transmission from A-pillar Induced Turbulence into Simplified Car Cabin SAE Technical Paper 2015-01-2322 2015 https://doi.org/10.4271/2015-01-2322
- Lighthill , M.J. On Sound Generated Aerodynamically Proceedings of the Royal Society 1952
- Ewert , R. and Schröder , W. Acoustic Perturbation Equations Based on Flowdecomposition via Source Filtering Journal of Computational Physics 2003
- Perugini , C.A. , Arzilli , G. , Torluccio , A. , Blumrich , R. et al. An Efficient Hybrid Computational Aeroaocustic Process: Validation and Applications for Vehicle Development 28th AIAA/CEAS Aeroacoustics 2022 Conference Southampton, UK 2022
- Perugini , C.A. , Arzilli , G. , Torluccio , A. , Blumrich , R. et al. Application of a Newly Implemented Numerical Tool for Aeroacoustic Vehicle Development Journal of Tongji University , 2022
- Oberai , A. , Roknaldin , F. , and Hughes , T. Computational Procedures for Determining Structural-Acoustic Response due to Hydrodynamic Sources Computer Methods in Applied Mechanics and Engineering 2000
- Free Field Technologies SA 2019
- Spalart , P.R. Detached-Eddy Simulation Annual Review of Fluid Mechanics 2009
- Jacqmot , J. , Detandt , Y. , and Lielens , G.A.C. Vibro-Aero-Acoustic Simulation of Side Mirror Wind Noise and Strategies to Evaluate Pressure Contributions ISMA2016 2016
- Riegel , M. , Blumrich , R. , Minck , O. , Verrecas , B. et al. New Large Microphone Array at the FKFS Wind Tunnel 12th FKFS-Conference Progress in Vehicle Aerodynamics and Thermal Management Stuttgart, Germany 2019
- Cabrol , M. , Detandt , Y. , Hartmann , M. , and Mutzke , A. A Comparison between the Effects of Turbulent and Acoustic Wall Pressure Fluctuations Inside a Car 18th AIAA/CEAS Aeroacoustics Conference Colorado Springs 2012
- Yuan , H.A.Y.Z. Comparison of Hydrodynamic and Acoustic Pressure on Automotive Front Side Window Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automotive Engineering 2021
- Zhong , L. , Li , Q. , and Wang , Y.A.Y. Aerodynamic Noise Prediction of Passenger Vehicle with Hybrid Detached Eddy Simulation/Acoustic Perturbation Equation Method Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 2018
- Hartmann , M. , Ocker , J. , Lmeke , T. , Mutzke , A. et al. Wind Noise Caused by the Side-Mirror and A-Pillar of a Generic Vehicle Model 18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference) 2012
- Hunt , J. , Wray , A. , and Moin , P. Eddies, Streams, and Convergence Zones in Urbulent Flows 1988
- Powell , A. Theory of Vortex Sound The Journal of the Acoustical Society of America 36 1964 177 195
- Howe , M. Theory of Vortex Sound Cambridge Cambridge University Press 2002