CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   acoustics (http://www.cfd-online.com/Forums/main/522-acoustics.html)

Oliver Getto February 5, 1999 10:10

acoustics
 
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 !

Gregory G. Vilensky February 6, 1999 14:00

Re: acoustics
 
>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.

Alessandro Grossi February 15, 1999 10:18

Re: acoustics
 
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


All times are GMT -4. The time now is 00:15.