Experimental study on correlation between turbulence and sound in a subsonic wind tunnel |
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| Authors: | Mojtaba Dehghan Manshadi K. Ghorbanian M.R. Soltani |
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| Affiliation: | M.D.Manshadi · K.Ghorbanian · M.R.SoltaniDepartment of Aerospace Engineering,Sharif University of Technology,PO Box 11365-9567,Tehran,Iran |
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| Abstract: | In this paper,the effects of turbulence on sound generation and velocity fluctuations due to pressure waves in a large subsonic wind tunnel are studied.A trip strip located at different positions in the contraction part or at one position in the diffuser of a large wind tunnel is used to investigate the aforementioned phenomenon,and the results indicate that the trip strip has significant effects on sound reduction.The lowest turbulence intensity and sound are obtained from a trip strip with a diameter of 0... |
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| Keywords: | Wind tunnel · Turbulence · Sound · Quadrupole term · Correlation |
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