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July 26, 2010, 04:36 |
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#121 |
Senior Member
Nima Samkhaniani
Join Date: Sep 2009
Location: Tehran, Iran
Posts: 1,267
Blog Entries: 1
Rep Power: 25 |
hi sasan
im sure the version of openFoam in ur laptop and and where you run in it parallel is different , in new release of openFoam (1.7) , for stability,"p_rgh" is used instead of "p". |
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July 26, 2010, 12:36 |
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#122 |
New Member
sasan
Join Date: Feb 2010
Posts: 5
Rep Power: 16 |
Thanks Nima and ngi,
That was helpful. |
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April 24, 2011, 17:13 |
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#123 |
Senior Member
Pablo
Join Date: Mar 2009
Posts: 102
Rep Power: 17 |
Hello Hrvoje,
As I said, if there are no topological changes, no field mapping gets done. Instead, the integral equations we are discretising are rewritten for the arbitrary moving control volume instead of the static one. There are two effects: 1) the rate of change of the volume in the ddt term (vol and old vol) 2) the relative velocity in the convection term, equal to the difference between the absolute velocity and the mesh motion velocity - that's the mesh.phi() bit in the solver. Once you do that, the mesh motion effect is actually built into the equation itself and the "mapping" you refer to becomes a part of the solution. Can you tell me what procedures are doing the steps 1) and 2)?, i mean change at volumen and relative velocity correction?? Advanced thanks, Pablo |
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May 9, 2011, 16:22 |
piso algorithm in interFOAM
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#124 |
Senior Member
Nima Samkhaniani
Join Date: Sep 2009
Location: Tehran, Iran
Posts: 1,267
Blog Entries: 1
Rep Power: 25 |
hello friend
why this following expression has been added to piso Algorithm - (fvc::grad(U) & fvc::grad(muEff)) is it for varying mu ? beacuse i think the effect of varying mu has been seen in : - fvm::laplacian(muEff, U) |
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May 9, 2011, 16:35 |
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#125 |
Senior Member
Santiago Marquez Damian
Join Date: Aug 2009
Location: Santa Fe, Santa Fe, Argentina
Posts: 452
Rep Power: 24 |
This is explained in Edin Berberovic's paper and due viscosity spacial variability and the expansion of (nabla U + nabla U^T) term.
Regards.
__________________
Santiago MÁRQUEZ DAMIÁN, Ph.D. Research Scientist Research Center for Computational Methods (CIMEC) - CONICET/UNL Tel: 54-342-4511594 Int. 7032 Colectora Ruta Nac. 168 / Paraje El Pozo (3000) Santa Fe - Argentina. http://www.cimec.org.ar |
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May 9, 2011, 18:23 |
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#127 |
Senior Member
Santiago Marquez Damian
Join Date: Aug 2009
Location: Santa Fe, Santa Fe, Argentina
Posts: 452
Rep Power: 24 |
I've sent it to the mail published in your contact info.
Regards.
__________________
Santiago MÁRQUEZ DAMIÁN, Ph.D. Research Scientist Research Center for Computational Methods (CIMEC) - CONICET/UNL Tel: 54-342-4511594 Int. 7032 Colectora Ruta Nac. 168 / Paraje El Pozo (3000) Santa Fe - Argentina. http://www.cimec.org.ar |
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May 25, 2011, 17:30 |
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#128 |
Member
Walter Schostak
Join Date: May 2011
Posts: 35
Rep Power: 15 |
So i've been using interFoam for the past week few weeks now and I'm starting to wonder if it's the best solver for what I'm trying to do (vof and mhd together).
It seems like interFoam, rather than taking properties of each fluid separately, takes properties of the mixture into account. Is there a different solver that would be more suited to solving two separate fluids such as liquid metal and plasma? |
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September 19, 2019, 04:20 |
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#129 |
New Member
neginmondegari
Join Date: Sep 2019
Posts: 9
Rep Power: 7 |
hello , I want to model the exterimental flume with the changeable slope and I want to model the bottom outlet with openfoam , is it possible to model it with interfoam? and is it possible to model the dam with changeable slope because of topography and is it possible to model the bottom outlet in dam?
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December 2, 2019, 06:39 |
Mules
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#130 |
New Member
Deutschland
Join Date: Jun 2019
Posts: 21
Rep Power: 7 |
Hello every one,
Does anybody know about the Algorithm which is used in the MULES method? |
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