1. bookVolume 19 (2019): Issue 1 (February 2019)
Journal Details
License
Format
Journal
eISSN
1335-8871
First Published
07 Mar 2008
Publication timeframe
6 times per year
Languages
English
access type Open Access

Measurement of Aerodynamic and Acoustic Quantities Describing Flow around a Body Placed in a Wind Tunnel

Published Online: 23 Feb 2019
Volume & Issue: Volume 19 (2019) - Issue 1 (February 2019)
Page range: 20 - 28
Received: 24 May 2018
Accepted: 22 Jan 2018
Journal Details
License
Format
Journal
eISSN
1335-8871
First Published
07 Mar 2008
Publication timeframe
6 times per year
Languages
English
Abstract

Aerodynamically generated noise affects passenger comfort in cars, high-speed trains, and airplanes, and thus, automobile manufacturers aim for its reduction. Investigation methods of noise and vibration sources can be divided into two groups, i.e. experimental research and mathematical research. Recently, owing to the increase in computing power, research in aerodynamically generated noise (aero-acoustics) is beginning to use modern methods such as computational fluid dynamics or fluid-structure interaction. The mathematical model of turbulent flow is given by the system of partial differential equations, its solution is ambiguous and thus requires verification by physical experiment. The results of numerical methods are affected by the boundary conditions of high quality gained from the actual experiment. This article describes an application of complex measurement methodology in the aerodynamic and acoustic (vibro-acoustic) fields. The first part of the paper is focused on the specification of the experimental equipment, i.e. the wind tunnel, which was significantly upgraded in order to obtain the relevant aerodynamics and vibro-acoustics data. The paper presents specific results from the measurement of the aerodynamic and vibro-acoustic fields.

Keywords

[1] Sun, Z., Song, J., An, Y. (2012). Numerical simulation of aerodynamic noise generated by high speed trains. Engineering Applications of Computational Fluid Mechanics, 6 (2), 173-185.10.1080/19942060.2012.11015412Search in Google Scholar

[2] Détry, S., Manera, J., Detandt, Y., d’Udekem, D. (2010). Aero-acoustic predictions of industrial dashboard HVAC systems. In 24th National Conference on Noise Control Engineering 2010 (Noise-Con 10). Ashland, Ohio: Noise Control Foundation, 870-881.Search in Google Scholar

[3] Manera, J., Detandt, Y., d’Udekem, D., Détry, S. (2009). Aero-acoustic predictions of automotive instrument panel ducts. SAE Technical Paper 2009-01-2237.10.4271/2009-01-2237Search in Google Scholar

[4] Van Antwerpen, B., d’Udekem, D., Bourachot, J.-L., Leandre, J.-P., Walbott, A., Bouvier, B. (2009). Vibro-acoustic simulation of diesel injection ducts. SAE Technical Paper 2009-01-2057.10.4271/2009-01-2057Search in Google Scholar

[5] Gustafsson, M., Jacqmot, J., Caro, S. (2010). Experimental validation of an efficient procedure for large acoustic radiation problems. In Proceedings of ISMA2010 including USD2010. Heverlee, Belgium: Katholieke Universiteit Leuven, 4557-4566.Search in Google Scholar

[6] Dechipré, H., Hartmann, M. (2009) Aeroacoustics simulation of an automotive A-pillar rain gutter. In 4th European Automotive Simulation Conference (EASC 2009). ANSYS, 12 p.Search in Google Scholar

[7] Murad, N.M., Naser, J., Alam, F., Watkins, S. (2006). Computational aero-acoustics of vehicle A-pillar at various windshield RADII. In Fifth International Conference on CFD in the Process Industries. Melbourne, Australia: CSIRO Publishing.Search in Google Scholar

[8] Ask, J., Davidson, L. (2005). The near field acoustics of a generic side mirror based on an incompressible approach. Research Report 2005:5, Division of Fluid Dynamics, Dept. of Applied Mechanics, Dynamics, Chalmers University of Technology, Göteborg, Sweden, 43 p.Search in Google Scholar

[9] Ask, J., Davidson, L. (2006). The sub-critical flow past a generic side mirror and its impact on sound generation and propagation. In 12th AIAA/CEAS Aeroacoustics Conference (27th AIAA Aeroacoustics Conference). American Institute of Aeronautics and Astronautics.10.2514/6.2006-2558Search in Google Scholar

[10] Caro, S., Ramonda, A. (2006). TBL Noise generated by a simplified side mirror configuration and acoustic transfer through the window: Modelling using Actran and Fluent. In 12th AIAA/CEAS Aeroacoustics Conference (27th AIAA Aeroacoustics Conference). American Institute of Aeronautics and Astronautics.10.2514/6.2006-2490Search in Google Scholar

[11] Wang, Y., Gu, Z., Li, W., Lin, X. (2010). Evaluation of aerodynamic noise generation by a generic side mirror. International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, 4 (1), 120-127.Search in Google Scholar

[12] Nouzawa, T., Li, Y., Kasaki, N., Nakamura, T. (2011). Mechanism of aerodynamic noise generated from front-pillar and door mirror of automobile. Journal of Environment and Engineering, 6 (3), 615-626.10.1299/jee.6.615Search in Google Scholar

[13] Hartmann, M., Ocker, J., Lemke, T., Mutzke, A., Schwarz, V., Tokuno, H., Toppinga, R., Unterlechner, P., Wickern, G. (2012). Wind noise caused by the side-mirror and A-pillar of a generic vehicle model. In 18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference). American Institute of Aeronautics and Astronautics.10.2514/6.2012-2205Search in Google Scholar

[14] Jørgensen, F.E. (2002). How to measure turbulence with hot-wire anemometers - a practical guide. Dantec Dynamics A/S, Skovlunde, Denmark, 73 p.Search in Google Scholar

[15] Tůma, J. (2009). Diagnostika strojů. Ostrava, Czech Republic: VŠB - Technická univerzita Ostrava. (in Czech)Search in Google Scholar

[16] Jablonska, J., Mahdal, M., Kozubkova, M. (2017). Spectral analysis of pressure, noise and vibration velocity measurement in cavitation. Measurement Science Review, 17 (6), 250-256.10.1515/msr-2017-0030Search in Google Scholar

[17] Lira, I., Grientschnig, D. (2013). A formalism for expressing the probability density functions of interrelated quantities. Measurement Science Review, 13 (2), 50-55.10.2478/msr-2013-0015Search in Google Scholar

[18] Uruba, V. (2016). On 3D instability of wake behind a cylinder. In The Application of Experimental and Numerical Methods in Fluid Mechanics and Energy 2016: XX. Anniversary of International Scientific Conference. AIP Conference Proceedings 1745, 020062.Search in Google Scholar

[19] Uruba, V., Pavlik, D., Prochazka, P., Skala, V., Kopecky, V. (2017). On 3D flow-structures behind an inclined plate. In EPJ Web of Conferences: Experimental Fluid Mechanics 2016 (EFM16), Vol. 143, 02137.Search in Google Scholar

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