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October 23, 2013, 18:39 |
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#21 |
Senior Member
Samuele Z
Join Date: Oct 2009
Location: Mozzate - Co - Italy
Posts: 520
Rep Power: 19 |
Thank you so much Tobias.
This really helped. |
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October 24, 2013, 09:04 |
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#22 |
Senior Member
Samuele Z
Join Date: Oct 2009
Location: Mozzate - Co - Italy
Posts: 520
Rep Power: 19 |
Hi Tobias,
can I ask you to share the fvSolution and fvSchemes files that you used for the solid regions. I think there's something wrong in mine, since I notice a strange behvior in domain2 region (look at the strange values of temperature) and the simulation is taking a lot of time to solve domain3. Code:
Time = 1 Solving for fluid region fluid DILUPBiCG: Solving for Ux, Initial residual = 1, Final residual = 0.00545485, No Iterations 1 DILUPBiCG: Solving for Uy, Initial residual = 1, Final residual = 0.0211023, No Iterations 1 DILUPBiCG: Solving for Uz, Initial residual = 1, Final residual = 0.00876899, No Iterations 1 DILUPBiCG: Solving for h, Initial residual = 1, Final residual = 0.0972692, No Iterations 11 Min/max T:270.103 305.567 DICPCG: Solving for p_rgh, Initial residual = 0.61935, Final residual = 0.00590249, No Iterations 316 time step continuity errors : sum local = 0.0921942, global = 0.000144678, cumulative = 0.000144678 Min/max rho:1.13988 1.28954 --> FOAM Warning : From function gaussConvectionScheme in file finiteVolume/convectionSchemes/gaussConvectionScheme/gaussConvectionScheme.H at line 123 Reading "/home/zampini/Documenti/personali/Epta/PCMPacks/steady/system/fluid/fvSchemes.divSchemes.div(phi,epsilon)" at line 35 Unbounded 'Gauss' div scheme used in steady-state solver, use 'bounded Gauss' to ensure boundedness. To remove this warning switch off 'boundedGauss' in "/home/zampini/OpenFOAM/OpenFOAM-2.2.0/etc/controlDict" DILUPBiCG: Solving for epsilon, Initial residual = 0.210492, Final residual = 0.00306992, No Iterations 1 DILUPBiCG: Solving for k, Initial residual = 1, Final residual = 0.0467604, No Iterations 1 Solving for solid region domain1 DICPCG: Solving for h, Initial residual = 1, Final residual = 0.0253284, No Iterations 2 Min/max T:min(T) [0 0 0 1 0 0 0] 297.999 max(T) [0 0 0 1 0 0 0] 298.003 Solving for solid region domain2 DICPCG: Solving for h, Initial residual = 1, Final residual = 0.0693808, No Iterations 1 Min/max T:min(T) [0 0 0 1 0 0 0] 275.845 max(T) [0 0 0 1 0 0 0] 316.145 Solving for solid region domain3 Thanks a lot, Samuele |
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October 24, 2013, 12:28 |
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#23 | |
Super Moderator
Tobias Holzmann
Join Date: Oct 2010
Location: Bad Wörishofen
Posts: 2,711
Blog Entries: 6
Rep Power: 52 |
Quote:
Hi samuele, didn't you notice the things I wrote you in skype. There is a link for the modified case there you find the fvSolutions. 1. your Warning belong to the none used "bound" scheme. Its a numerical trick I always use for stabilisation. 2. You Temperature of your fluid seems to be bad too. 3. Why you are not using only hexaeder meshes? It would be very nice. 4. For pressure equations you should / could use GAMG solvers Regards Tobi |
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October 25, 2013, 03:55 |
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#24 |
Senior Member
Samuele Z
Join Date: Oct 2009
Location: Mozzate - Co - Italy
Posts: 520
Rep Power: 19 |
Dear Tobias,
thanks a lot for answering. Actually, I think that I have not received anything via Skype. Maybe I was online or something went wrong. Let's try again. Sorry. Samuele |
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August 29, 2014, 15:40 |
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#25 |
Senior Member
Srivathsan N
Join Date: Jan 2013
Location: India
Posts: 101
Rep Power: 13 |
Hi Samuelle,
Can you tell me how you got rid of this error? Code:
--> FOAM FATAL IO ERROR: keyword type is undefined in dictionary ".T" file: .T from line 66 to line 75.
__________________
Regards, Srivaths |
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August 29, 2014, 18:28 |
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#26 |
Senior Member
Samuele Z
Join Date: Oct 2009
Location: Mozzate - Co - Italy
Posts: 520
Rep Power: 19 |
Please,
attach the dictionary! |
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December 29, 2015, 23:14 |
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#27 |
Senior Member
nasir musa yakubu
Join Date: Mar 2014
Location: Birmingham
Posts: 109
Rep Power: 12 |
Hello samiam,
have you resolved ur issue? best regards |
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