Hybride Acoustic EIF

Thilo · October 18, 2011, 04:26

Hi Everyone,

I intend to implement an acoustic code in OpenFoam to calculate flow induced noise. I think about using the EIF-Method where I calculate an incompressible, viscous flow. On top of this, the acoustic is assumed to be compressible and in viscid.

Is there anyone, who did so already, and who is willing to give me some help, so I do not have to start from scratch?

Next to this, I’m pretty new in programming with OpenFoam. So I would appreciate your help even more.

Cheers

Thilo

Thilo · October 22, 2011, 12:28

As there seems to be no acoustic cfd-solver jet, I started to impement one. But as I posted before, I'm new in opemFoam programming an so I would be happy to get some help.

My first equation loos like

ddt \int_V rho dV + \int_A U*n dA = 0, where U is kind of velocity vector, n is the surface normal and rho the density.

Is there a possibility to write this as an equation?

Thank you very much for your help

Thilo

October 18, 2011, 04:26	Acoustic with OpenFoam	#1
Thilo New Member Thilo Michels Join Date: Oct 2011 Posts: 11 Rep Power: 14	Hi Everyone, I intend to implement an acoustic code in OpenFoam to calculate flow induced noise. I think about using the EIF-Method where I calculate an incompressible, viscous flow. On top of this, the acoustic is assumed to be compressible and in viscid. Is there anyone, who did so already, and who is willing to give me some help, so I do not have to start from scratch? Next to this, I’m pretty new in programming with OpenFoam. So I would appreciate your help even more. Cheers Thilo Last edited by Thilo; October 19, 2011 at 05:31.

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October 22, 2011, 12:28		#2
Thilo New Member Thilo Michels Join Date: Oct 2011 Posts: 11 Rep Power: 14	As there seems to be no acoustic cfd-solver jet, I started to impement one. But as I posted before, I'm new in opemFoam programming an so I would be happy to get some help. My first equation loos like ddt \int_V rho dV + \int_A U*n dA = 0, where U is kind of velocity vector, n is the surface normal and rho the density. Is there a possibility to write this as an equation? Thank you very much for your help Thilo