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September 22, 2009, 07:41
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Vof Wave
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#1 |
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New Member
Andrea Cicalini
Join Date: Sep 2009
Posts: 13
Rep Power: 17  |
I'm doing a thesis about 6 Dof body (an Hull) and waves of first order with STAR CCM+ v4.04.The wave diffuses quickly and become a flat wave in the control field. I put the boundaries of velocity inlet in every external face of dominio except for the face behind the hull where i put pressure outlet.I set a timestep of 0.01 sec. The wave has a lenght of 20 m, amplitude 1 m,current and wind 2,5 m/s. Do you have an idea to solve this problem? Thank You
Last edited by cicagol; September 23, 2009 at 09:42. |
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September 23, 2009, 09:54
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#2 |
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New Member
Andrea Cicalini
Join Date: Sep 2009
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It's the first part of summary report
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September 23, 2009, 09:58
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#3 |
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New Member
Andrea Cicalini
Join Date: Sep 2009
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the second part
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September 23, 2009, 09:58
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#4 |
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New Member
Andrea Cicalini
Join Date: Sep 2009
Posts: 13
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the third part
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September 24, 2009, 12:25
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#5 | |
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Senior Member
Join Date: Mar 2009
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Quote:
 That the wave becomes flat quickly? |
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September 24, 2009, 12:36
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#6 |
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New Member
Andrea Cicalini
Join Date: Sep 2009
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Yes...I think it's a problem of approssimation...a first order wave has limits and i can't have a wave of certain features with the first order
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September 24, 2009, 12:38
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#7 |
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Senior Member
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Why only first order?
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September 24, 2009, 12:42
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#8 |
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New Member
Andrea Cicalini
Join Date: Sep 2009
Posts: 13
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Not only first order...but i'm studying first order...with first order I mean first order of Stokes approssimation theory
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September 24, 2009, 12:50
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#9 |
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Senior Member
Join Date: Mar 2009
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Ahh ok. That's down my alley
Maybe this helps you: http://www.flow3d.com/resources/news...mmer09_02.html |
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September 24, 2009, 12:53
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#10 |
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New Member
Andrea Cicalini
Join Date: Sep 2009
Posts: 13
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Thank You, I've already seen this yesterday...it's the reason i wrote that first order have some limits
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September 24, 2009, 13:18
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#11 |
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Senior Member
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Ok, then I understand your posting right.
Again what is your problem? |
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September 24, 2009, 13:21
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#12 |
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New Member
Andrea Cicalini
Join Date: Sep 2009
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In this moment nothing, i'm simulating a new wave and tomorrow i'll see the result...So i'm waiting...
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September 28, 2009, 04:13
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#13 |
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New Member
Andrea Cicalini
Join Date: Sep 2009
Posts: 13
Rep Power: 17 |
After three days of simulation, 64 sec. in simulation time...it's all good
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September 28, 2009, 05:29
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#14 |
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Senior Member
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Sounds good.
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Linear Mode
