Flow-Induced Noise Simulation Based on LES/Lighthill Hybrid Method

Yong Ou Zhang; Tao Zhang; Tian Yun Li

doi:10.4028/www.scientific.net/AMM.614.428

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 614Flow-Induced Noise Simulation Based on...

Flow-Induced Noise Simulation Based on LES/Lighthill Hybrid Method

Abstract:

A hybrid numerical method of combining Large Eddy Simulation (LES) and Lighthill’s acoustic analogy theory is utilized to simulate the flow-induced noise at low Mach numbers. The aerodynamic noise generated by flow through a cavity, which is similar to a valve, is simulated and the results are validated by comparing with the open literature. In the simulation, the turbulent flow is computed with LES. After this, the flow field simulation results are used to compute the flow-induced noise with Lighthill’s acoustic analogy theory based on the commercial software ACTRAN. Finally, the simulation results of the flow-induced noise, including the sound pressure level and the peak frequencies, are analyzed and compared with experimental data. It is validated that the hybrid method of combining LES and Lighthill’s acoustic analogy theory used in this paper is feasible and reliable in engineering applications.

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Periodical:

Applied Mechanics and Materials (Volume 614)

Pages:

428-431

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.614.428

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Online since:

September 2014

Authors:

Yong Ou Zhang, Tao Zhang*, Tian Yun Li

Keywords:

ACTRAN, Cavity, Flow-Induced Noise, Large Eddy Simulation, Lighthill’s Acoustic Analogy, Valve

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References

[1] P. Lafon, S. Caillaud, J.P. Devos and C. Lambert. Aeroacoustical coupling in a ducted shallow cavity and fluid/structure effects on a steam line. J. Fluids Struct. Vol. 18 (2003), pp.695-713.

DOI: 10.1016/j.jfluidstructs.2003.08.018

Google Scholar

[2] Y.J. Moon, J.H. Seo, Y.M. Bae, M. Roger and S. Becker. A hybrid prediction method for low-subsonic turbulent flow noise. Comput. Fluids Vol. 39 (2010), pp.1125-1135.

DOI: 10.1016/j.compfluid.2010.02.005

Google Scholar

[3] M. Ji and M. Wang. Sound generation by turbulent boundary-layer flow over small steps. J. Fluid Mech. Vol. 654 (2010), pp.161-193.

DOI: 10.1017/s0022112010000467

Google Scholar

[4] M. Ji and M. Wang. Surface pressure fluctuations on steps immersed in turbulent boundary layers. J. Fluid Mech. Vol. 712 (2012), pp.471-504.

DOI: 10.1017/jfm.2012.433

Google Scholar

[5] J.M. Liu, T. Zhang and Y.O. Zhang. Numerical study on flow-induced noise for a steam stop-valve using Large Eddy Simulation. J. Mar. Sci. Appl. Vol. 12 (2013), pp.351-360.

DOI: 10.1007/s11804-013-1195-9

Google Scholar

[6] Y.O. Zhang, T. Zhang, H. Ouyang and T.Y. Li. Flow-induced noise analysis for 3D trash rack based on LES/Lighthill hybrid method. Appl. Acoust. Vol. 79 (2014), pp.141-152.

DOI: 10.1016/j.apacoust.2013.12.016

Google Scholar