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August 1, 2011, 11:47 |
Acoustic Pulse
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#1 |
Member
kostas
Join Date: Jun 2010
Posts: 43
Rep Power: 15 |
I want to validate a Euler equations solver using the acoustic pulse as test case.
However, the exact solution of it, is complex to derived due to the appearence of integral which involves a bessel function. What can i do for derive the exact solution? Any suggestions? |
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August 2, 2011, 03:23 |
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#2 |
Senior Member
cfdnewbie
Join Date: Mar 2010
Posts: 557
Rep Power: 20 |
would it have to be an acoustic pulse? you may start with sth simpler and build up from there to validate the code...e.g. the standard test case: pulse in rho..
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August 2, 2011, 05:30 |
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#3 |
New Member
aaaaaaaaaaaaaa
Join Date: Apr 2011
Posts: 23
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Could you tell me more information for this case? Some papers which setup the test?
The convection of isentropic vortex is not good problem for validation? |
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August 2, 2011, 07:46 |
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#4 | |
Senior Member
andy
Join Date: May 2009
Posts: 270
Rep Power: 18 |
Quote:
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August 2, 2011, 12:23 |
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#5 |
Senior Member
cfdnewbie
Join Date: Mar 2010
Posts: 557
Rep Power: 20 |
Start by using a density pulse with a velocity field (should be convected along the streamlines).
If that works, use the method of the manufactured solution to create sth like a sinewave solution and test convergence with that - if you actually have access to the code and can add a source term, that is.... |
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August 5, 2011, 14:19 |
wolfram alpha
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#6 |
New Member
phillip
Join Date: Aug 2011
Posts: 7
Rep Power: 14 |
just ask wolframalpha.com to integrate it for you.
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