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Old   February 5, 1999, 10:10
Default acoustics
  #1
Oliver Getto
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hello, i am working on internal flow phanomenas and their acoustical effects. does anybody know if there are correlations between the specific turb. energie and the sound level ? i would also appreciate any information about literature concerning this problem. thanks in advance !
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Old   February 6, 1999, 14:00
Default Re: acoustics
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Gregory G. Vilensky
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>hello, i am working on internal flow phanomenas and their >acoustical effects. does anybody know if there are >correlations
>between the specific turb. energie and the sound level ? i >would also appreciate any information about literature >concerning this
>problem. thanks in advance !

Hello.

I believe there is such a correlation. As far as I know, it is called Lighthill's analogy. Howevere, if you are working with an internal flow with boundaries the integral scale of turbulence may be very important, too. Some time before I've developed a code for industry which deals with acoustics of ducted propellers (reported at ECMI conference). Can send you a copy of the report. Perhaps, it maight be of use for you.

Yours sincerely.

Gregory Vilensky.
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Old   February 15, 1999, 10:18
Default Re: acoustics
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Alessandro Grossi
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hello,

I'm a phd student, and at the moment I work in the same field as you. May you send to me a elettronic copy of the Gregory's report ?

thanks

Alessandro Grossi
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