Forum: OpenFOAM Running, Solving & CFD
April 8, 2014, 17:47
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Replies: 105
Views: 37,117
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Forum: OpenFOAM Running, Solving & CFD
September 24, 2013, 19:38
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Replies: 105
Views: 37,117
Hi:
I think there are a few papers where...
Hi:
I think there are a few papers where evaporation is modeled as source term for a continuum e.g. Hardt, S. & Wondra, F. 2008 Evaporation model for interfacial flows based on a continuum- field...
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Forum: OpenFOAM Running, Solving & CFD
February 10, 2012, 15:46
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Replies: 105
Views: 37,117
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Forum: OpenFOAM Running, Solving & CFD
October 30, 2010, 10:55
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Replies: 105
Views: 37,117
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Forum: OpenFOAM Running, Solving & CFD
October 25, 2010, 10:51
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Replies: 105
Views: 37,117
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Forum: OpenFOAM Running, Solving & CFD
October 25, 2010, 10:37
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Replies: 105
Views: 37,117
Pls send ur email and I would forward you...
Pls send ur email and I would forward you detailed instros on how to get this done. But going forward, you would find all the instructions you need in the OpenFOAM manual or programming guide.
...
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Forum: OpenFOAM Running, Solving & CFD
October 23, 2010, 10:47
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Replies: 105
Views: 37,117
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Forum: OpenFOAM Running, Solving & CFD
October 6, 2010, 12:29
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Replies: 105
Views: 37,117
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Forum: OpenFOAM Running, Solving & CFD
October 6, 2010, 12:16
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Replies: 105
Views: 37,117
hi farhagim,
I can see that the constructor...
hi farhagim,
I can see that the constructor and a number of the functions in the incompressibleTwoPhaseThermalMixturec class are reported in the error log. Perharps the new class is not included...
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Forum: OpenFOAM Running, Solving & CFD
October 5, 2010, 21:51
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Replies: 105
Views: 37,117
Which of the files did you compile first? You...
Which of the files did you compile first? You have to compile the incompressibleTwoPhaseThermalMixture file first before the interTempFoam solver. I have looked through and really cant find any...
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Forum: OpenFOAM Running, Solving & CFD
October 5, 2010, 13:21
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Replies: 105
Views: 37,117
Hi Faraghim,
Please check in your...
Hi Faraghim,
Please check in your incompressibleTwoPhaseThemalMixture file if the function `Foam::twoPhaseMixture::kappaf() const' actually exits. And then check in your temperature equation in...
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Forum: OpenFOAM Running, Solving & CFD
June 29, 2010, 02:57
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Replies: 105
Views: 37,117
Hi Metro,
Like I said in an earlier reply,...
Hi Metro,
Like I said in an earlier reply, if the instability you speak of is at the interfacial region then its almost a consequence of the sharp jump in material properties at the interface. In...
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Forum: OpenFOAM Running, Solving & CFD
June 28, 2010, 16:01
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Replies: 105
Views: 37,117
Metro,
please note that this solver is...
Metro,
please note that this solver is specifically for laminar flows. You have to make some modifications to extend to turbulent flows. Just needed to clarify this so u are using it for the...
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Forum: OpenFOAM Running, Solving & CFD
June 28, 2010, 14:33
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Replies: 105
Views: 37,117
Try a higher grid resolution. I had similar...
Try a higher grid resolution. I had similar problems earlier. The instability is typically around the interface region and simply grows unboundedly with time. Somewhere in the forum someone said this...
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Forum: OpenFOAM Running, Solving & CFD
June 22, 2010, 02:53
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Replies: 105
Views: 37,117
metro
No worries. We all need the...
metro
No worries. We all need the help and the forum has truly been invaluable.
Not quite sure you can make that sort of direct comparison i.e. confined pipe flow vs free surface...
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Forum: OpenFOAM Running, Solving & CFD
June 21, 2010, 16:33
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Replies: 105
Views: 37,117
metro,
I have not been able to implement...
metro,
I have not been able to implement that yet. I am still trying to benchmark the results for my falling film flow with experimental results. Are you working on something similar?
ovie
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Forum: OpenFOAM Running, Solving & CFD
June 21, 2010, 13:17
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Replies: 105
Views: 37,117
I missed something:
In addition, rather...
I missed something:
In addition, rather than making hard coded changes to the twoPhaseMixture class, I implemented a derived class for the thermal properties which inherits the functions in the...
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Forum: OpenFOAM Running, Solving & CFD
June 21, 2010, 12:31
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Replies: 105
Views: 37,117
Hi Metro,
You still need to make...
Hi Metro,
You still need to make additional modifications to the codes for the interTempFoam solver like creating variables in the createFields.H. I am attaching a copy of my codes for your...
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Forum: OpenFOAM Running, Solving & CFD
May 5, 2010, 12:08
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Replies: 105
Views: 37,117
Hey Romant,
If you are using the single...
Hey Romant,
If you are using the single field representation which the interFoam family of solvers is based on, then the energy equation must apply to the entire flow field which is both the...
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Forum: OpenFOAM Running, Solving & CFD
February 8, 2010, 19:29
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Replies: 105
Views: 37,117
Hi Chiven,
I am also working on phase change...
Hi Chiven,
I am also working on phase change but evaporation. In my case the properties of my fluid are all dependent on temperature and another scalar variable (dry solids mass fraction) so I...
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Forum: OpenFOAM Running, Solving & CFD
February 8, 2010, 13:39
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Replies: 105
Views: 37,117
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Forum: OpenFOAM Running, Solving & CFD
October 18, 2009, 13:05
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Replies: 105
Views: 37,117
That was my initial approach but of course the...
That was my initial approach but of course the result didnt converge. Now I dont know if the lack of convergence resulted from the incorrect approximation of the divergence term or the unsteady term...
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Forum: OpenFOAM Running, Solving & CFD
October 18, 2009, 12:41
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Replies: 105
Views: 37,117
Hi Eelco,
Those were my thoughts precisely:...
Hi Eelco,
Those were my thoughts precisely: to use cell-centered values for kappa in the heat equation. I dont have any logical explaination for my choice of face centered values except that in...
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Forum: OpenFOAM Running, Solving & CFD
October 17, 2009, 09:59
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Replies: 105
Views: 37,117
Hi Edin,
Thanks for the review. But a quick...
Hi Edin,
Thanks for the review. But a quick one: which of these two expressions do you suppose would be the more appropriate expression for calculating kappaf in the function kappaf() in...
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Forum: OpenFOAM Running, Solving & CFD
October 15, 2009, 19:30
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Replies: 105
Views: 37,117
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