Forum: OpenFOAM
August 24, 2011, 08:15
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Replies: 1
Views: 1,330
Hi,
I am using a similar kind of problem....
Hi,
I am using a similar kind of problem. But as of now I am not solving for Humidity. If you are still solving this problem you can try for BouyentSimpleFoam.
Did you also use Radiation in...
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Forum: OpenFOAM Installation
April 20, 2011, 04:05
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Replies: 68
Views: 25,100
Hi Manoj,
Actually if you are not able to...
Hi Manoj,
Actually if you are not able to use parafoam. most porbablly "your paraview is not compiled or you don't have it in Thirdparty" dir.
what you can do is you can download paraview ready...
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Forum: OpenFOAM
April 4, 2011, 05:18
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Replies: 17
Views: 28,211
Hi Amol and Maddalena,
Thanks a ton for your...
Hi Amol and Maddalena,
Thanks a ton for your advices. actually the issue behind explosion in epsilon value was and bonding warnings was due to lack of knowledge for calculating epsilon.
For...
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Forum: OpenFOAM
March 10, 2011, 09:15
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Replies: 17
Views: 28,211
Hi Maddalena,
First of all thanks a ton for...
Hi Maddalena,
First of all thanks a ton for your reply.
I dont think BC are problem.
Now for test sake, I have tried the same model for constant velocity inlet
with really small values...
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Forum: OpenFOAM
March 10, 2011, 04:25
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Replies: 17
Views: 28,211
Hi,
Hear is the check mesh logfile attached....
Hi,
Hear is the check mesh logfile attached.
I have one more query. I never understand what do we exactly mean by time step continuity error. As it suddenly overshoots for my case resulting in...
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Forum: OpenFOAM
March 10, 2011, 04:15
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Replies: 4
Views: 2,112
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Forum: OpenFOAM Running, Solving & CFD
March 10, 2011, 04:13
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Replies: 69
Views: 25,746
Hi Maddalena,
My apologies for...
Hi Maddalena,
My apologies for inconvinience. Can you please help me a bit. I think you have already figured out the way for stable solution. my case details are posted here.
...
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Forum: OpenFOAM Running, Solving & CFD
March 8, 2011, 10:32
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Replies: 69
Views: 25,746
Hi Maddalena,
Similar situation is happening...
Hi Maddalena,
Similar situation is happening for me. The solution blows up after some time steps. I also have bonding values for K and epsilon. Can you please tell me what did you do to make...
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Forum: OpenFOAM Running, Solving & CFD
March 8, 2011, 05:30
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Replies: 69
Views: 25,746
Hi All,
I am also trying to do flow...
Hi All,
I am also trying to do flow simulation for a city model. And using Simplefoam form the same. I am also facing similer kind of issues as MALLALENA
please rever to following post for case...
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Forum: OpenFOAM Running, Solving & CFD
March 8, 2011, 05:26
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Replies: 17
Views: 9,164
Hi All,
I am also trying to do flow...
Hi All,
I am also trying to do flow simulation for a city model. And using Simplefoam form the same. I am also facing similer kind of issues as MALLALENA
please rever to following post for case...
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Forum: OpenFOAM Running, Solving & CFD
March 8, 2011, 05:25
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Replies: 17
Views: 9,164
Hi All,
I am also trying to do flow...
Hi All,
I am also trying to do flow simulation for a city model. And using Simplefoam form the same. I am also facing similer kind of issues as MALLALENA
please rever to following post for case...
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Forum: OpenFOAM Running, Solving & CFD
March 8, 2011, 05:24
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Replies: 69
Views: 25,746
Hi All,
I am also trying to do flow...
Hi All,
I am also trying to do flow simulation for a city model. And using Simplefoam form the same. I am also facing similer kind of issues as MALLALENA
please rever to following post for case...
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Forum: OpenFOAM Running, Solving & CFD
March 3, 2011, 07:56
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Replies: 11
Views: 4,527
Hi,
I know to you it might sound stupid. but...
Hi,
I know to you it might sound stupid. but what I would like to know that is the difference this one and simplefoam ?? I have also compared results of OF and FLUENT for other type od flow and I...
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Forum: OpenFOAM
January 20, 2011, 06:24
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Replies: 17
Views: 28,211
I am besically trying to solve for flow...
I am besically trying to solve for flow simulation around a city model. and I am performing validation against wind tunnel and FLUENT results.
As it is a case of flow over surface. I have to use...
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Forum: OpenFOAM Pre-Processing
January 17, 2011, 17:51
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Replies: 31
Views: 128,236
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Forum: OpenFOAM
January 14, 2011, 06:57
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Replies: 17
Views: 28,211
Hi paka,
Actually my domain is about 2 km in...
Hi paka,
Actually my domain is about 2 km in length and 0.5 km in hight and I have used unstructured mesh. And the city is located at some distance from inlet. The total mesh size is approximately...
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Forum: OpenFOAM
January 13, 2011, 10:12
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Replies: 17
Views: 28,211
Hi All,
I am trying to simulate flow...
Hi All,
I am trying to simulate flow Simulation over a city model. but here I dont know the charectarastic length. But rhater I have a ratio of (nut/nu). If i am trying to use following formula...
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Forum: OpenFOAM
December 23, 2010, 04:48
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Replies: 4
Views: 2,112
Thanks Bogar,
But I am using "Newtonian"...
Thanks Bogar,
But I am using "Newtonian" Fluid and "Standard k-epsilon model". but In that case i dont know how to calculate epsilon as i dont know the char. length for the domain.
I was trying...
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Forum: OpenFOAM
December 16, 2010, 11:21
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Replies: 4
Views: 2,112
Need some details in SimpleFOAM
Hi All,
I have set up problem to simulate flow over a city using exp prof at inlet. Unfortunately I dnot know the Char. Length for Epsilon calculation. However I have calculated it using values of...
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Forum: OpenFOAM Running, Solving & CFD
December 3, 2010, 06:32
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Replies: 12
Views: 4,594
Getting following ERROR if i set "setAverage"...
Getting following ERROR if i set "setAverage" field on in above comment. Can someone tell me the reason....... please.... :(:(:(
Time = 5
smoothSolver: Solving for Ux, Initial residual = 0,...
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Forum: OpenFOAM Running, Solving & CFD
November 22, 2010, 10:20
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Replies: 12
Views: 4,594
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Forum: OpenFOAM
October 26, 2010, 14:07
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Replies: 21
Views: 9,581
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Forum: OpenFOAM Running, Solving & CFD
October 25, 2010, 08:54
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Replies: 12
Views: 4,594
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Forum: OpenFOAM
October 25, 2010, 05:12
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Replies: 21
Views: 9,581
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Forum: OpenFOAM Running, Solving & CFD
October 25, 2010, 04:51
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Replies: 4
Views: 1,674
Hi Kerim,
In that case. MAy be it comes...
Hi Kerim,
In that case. MAy be it comes because your problem involves sudden rise in pressure / velocity. check for skewness of elements for your mesh. (As i dont know which kind of mesh you are...
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