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acoustic absorbtion

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Old   February 2, 2000, 12:20
Default acoustic absorbtion
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Eric Lenormand
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I m looking for informations on how an acoustic wave is damped when reflected on a turbulent boundary layer or through a turbulent flow. I m using an LES approach to model turbulence and I suspect the effect of turbulence on acoustic can be taken into account via an additional viscosity ... Am I right ? what viscosity should I add ?

As any one any idea ? Thanks
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