Evaluation of Aerodynamic Noise Generation by a Generic Side Mirror
The aerodynamic noise radiation from a side view mirror (SVM) in the high-speed airflow is calculated by the combination of unsteady incompressible fluid flow analysis and acoustic analysis. The transient flow past the generic SVM is simulated with variable turbulence model, namely DES Detached Eddy Simulation and LES (Large Eddy Simulation). Detailed velocity vectors and contour plots of the time-varying velocity and pressure fields are presented along cut planes in the flow-field. Mean and transient pressure are also monitored at several points in the flow field and compared to corresponding experimentally data published in literature. The acoustic predictions made using the Ffowcs-Williams-Hawkins acoustic analogy (FW-H) and the boundary element (BEM).
[1] Hold, R., Brenneis, A., and Eberle, A., "Numerical Simulation of
Aeroacoustic Sound Generated by Generic Bodies Placed on a Plate: Part
I - Prediction of Aeroacoustic Sources," 5th AIAA/CEAS Aeroacoustics
Conference. Seattle, Washington, 10-12 May 1999, pp. AIAA-99-1896.
[2] Siegert, R., Schwartz, V., and Reichenberger, J., "Numerical Simulation
of Aeroacoustic Sound Generated by Generic Bodies Placed on a Plate:
Part II - Prediction of Radiated Sound Pressure," 5th AIAA/CEAS
Aeroacoustics Conference. Seattle, Washington, 10-12 May 1999, pp.
AIAA-99-1895.
[3] Bipin Lokhande, Sandeep Sovani and Jieyong Xu.Computational
Aeroacoustic Analysis of a Generic Side View Mirror SAE paper
2003-01-1698 (2003).
[4] Jonas Ask and Lars Davidson .The Sub-critical Flow past a Generic Side
Mirror and its Impact on Sound Generation and Propagation 12th
AIAA/CEAS Aeroacoustics Conference. Cambridge, Massachusetts,
8-10 May 2006 AIAA 2006-2558.
[5] Th. Rung, D. Eschricht, J. Yan and F. Thiele. Sound Radiation of the
Vortex Flow Past a Generic Side Mirror 8th AIAA/CEAS Aeroacoustics
Conference & Exhibit, Breckenridge, Colorado, 17-19 June 2002 AIAA
2002-2549.
[6] Thorsten Grahs and Carsten Othmer. Evaluation of aerodynamic noise
generation: parameter study of a generic side mirror evaluating the
aeroacoustic source strength. European Conference on Computational
Fluid Dynamics (2006).
[7] Sagaut, P.: Large-Eddy Simulation for Incompressible Flows, 3rd edn.
Scientific Computation. Springer, Berlin Heidelberg New York (2005).
[8] E. de Villiers. The potential of large eddy simulation for the modeling of
wall bounded flows. PhD thesis, Imperial College London (2005).
[9] Tennekes, H. and Lumley, J.L., A First Course in Turbulence, MIT Press,
Cambridge, MA (1972).
[10] Fluent 6.3 User-s Guide, Fluent Inc.
[11] M. J. Lighthill. On sound generated aerodynamically, I General theory.
Proc. Roy. Soc., A 211, 564-587, (1952).
[12] N. Curle. The influence of solid boundaries upon aerodynamic sound.
Proc. Roy. Soc., A 231, 505-514, (1955)..
[13] J. E. Ffowcs Williams and D. L. Hawkins. Sound generation by
turbulence and surfaces in arbitrary motion. Sound. Philos. Trans. Roy.
Soc., A 264, No. 1151, 321-342, (1969).
[14] Numerical Acoustics Theoretical Manual. LMS International.
[1] Hold, R., Brenneis, A., and Eberle, A., "Numerical Simulation of
Aeroacoustic Sound Generated by Generic Bodies Placed on a Plate: Part
I - Prediction of Aeroacoustic Sources," 5th AIAA/CEAS Aeroacoustics
Conference. Seattle, Washington, 10-12 May 1999, pp. AIAA-99-1896.
[2] Siegert, R., Schwartz, V., and Reichenberger, J., "Numerical Simulation
of Aeroacoustic Sound Generated by Generic Bodies Placed on a Plate:
Part II - Prediction of Radiated Sound Pressure," 5th AIAA/CEAS
Aeroacoustics Conference. Seattle, Washington, 10-12 May 1999, pp.
AIAA-99-1895.
[3] Bipin Lokhande, Sandeep Sovani and Jieyong Xu.Computational
Aeroacoustic Analysis of a Generic Side View Mirror SAE paper
2003-01-1698 (2003).
[4] Jonas Ask and Lars Davidson .The Sub-critical Flow past a Generic Side
Mirror and its Impact on Sound Generation and Propagation 12th
AIAA/CEAS Aeroacoustics Conference. Cambridge, Massachusetts,
8-10 May 2006 AIAA 2006-2558.
[5] Th. Rung, D. Eschricht, J. Yan and F. Thiele. Sound Radiation of the
Vortex Flow Past a Generic Side Mirror 8th AIAA/CEAS Aeroacoustics
Conference & Exhibit, Breckenridge, Colorado, 17-19 June 2002 AIAA
2002-2549.
[6] Thorsten Grahs and Carsten Othmer. Evaluation of aerodynamic noise
generation: parameter study of a generic side mirror evaluating the
aeroacoustic source strength. European Conference on Computational
Fluid Dynamics (2006).
[7] Sagaut, P.: Large-Eddy Simulation for Incompressible Flows, 3rd edn.
Scientific Computation. Springer, Berlin Heidelberg New York (2005).
[8] E. de Villiers. The potential of large eddy simulation for the modeling of
wall bounded flows. PhD thesis, Imperial College London (2005).
[9] Tennekes, H. and Lumley, J.L., A First Course in Turbulence, MIT Press,
Cambridge, MA (1972).
[10] Fluent 6.3 User-s Guide, Fluent Inc.
[11] M. J. Lighthill. On sound generated aerodynamically, I General theory.
Proc. Roy. Soc., A 211, 564-587, (1952).
[12] N. Curle. The influence of solid boundaries upon aerodynamic sound.
Proc. Roy. Soc., A 231, 505-514, (1955)..
[13] J. E. Ffowcs Williams and D. L. Hawkins. Sound generation by
turbulence and surfaces in arbitrary motion. Sound. Philos. Trans. Roy.
Soc., A 264, No. 1151, 321-342, (1969).
[14] Numerical Acoustics Theoretical Manual. LMS International.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:57596", author = "Yiping Wang and Zhengqi Gu and Weiping Li and Xiaohui Lin", title = "Evaluation of Aerodynamic Noise Generation by a Generic Side Mirror", abstract = "The aerodynamic noise radiation from a side view mirror (SVM) in the high-speed airflow is calculated by the combination of unsteady incompressible fluid flow analysis and acoustic analysis. The transient flow past the generic SVM is simulated with variable turbulence model, namely DES Detached Eddy Simulation and LES (Large Eddy Simulation). Detailed velocity vectors and contour plots of the time-varying velocity and pressure fields are presented along cut planes in the flow-field. Mean and transient pressure are also monitored at several points in the flow field and compared to corresponding experimentally data published in literature. The acoustic predictions made using the Ffowcs-Williams-Hawkins acoustic analogy (FW-H) and the boundary element (BEM).
", keywords = "Aerodynamic noise, BEM, DES, FW-H acousticanalogy, LES", volume = "4", number = "1", pages = "59-8", }
