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Simple Acoustic
Posted 2012年5月15日 GMT-4 05:53 Acoustics & Vibrations Version 3.5a 1 Reply
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Hello,
I am trying to model a 2D acoustic time harmonic square (10x10[m]; left bottom corner at (0,0)).
At the top the pressure is 101325[Pa] and now I just wanted to get started with the gravity force as a kind of a load, but how can I implementate it to get a continous rise of the pressure?
The 2nd step should be to create a point-source which is located at (0,0). But this is as well unknown for me yet.
Thanks for any hints on this.
Nikolaus
I am trying to model a 2D acoustic time harmonic square (10x10[m]; left bottom corner at (0,0)).
At the top the pressure is 101325[Pa] and now I just wanted to get started with the gravity force as a kind of a load, but how can I implementate it to get a continous rise of the pressure?
The 2nd step should be to create a point-source which is located at (0,0). But this is as well unknown for me yet.
Thanks for any hints on this.
Nikolaus
1 Reply Last Post 2012年5月15日 GMT-4 06:49
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Posted:
1 decade ago
Hi
cant you load the system with a stationary solver case (before your time harmonic) and add a body force
Fz = -g_const*rho
And use the results of the stationary case as initial condition for the time harmonic ?
As I do not have Acoustic module I do not know if the bnody load is already in there, else you need to add a solid/structural physics, or find a coupled one
--
Good luck
Ivar
cant you load the system with a stationary solver case (before your time harmonic) and add a body force
Fz = -g_const*rho
And use the results of the stationary case as initial condition for the time harmonic ?
As I do not have Acoustic module I do not know if the bnody load is already in there, else you need to add a solid/structural physics, or find a coupled one
--
Good luck
Ivar