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August 23, 2013, 05:07 

#21 
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Martin Novák
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August 23, 2013, 05:25 

#22 
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Basta
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Here is the system folder of the simple case (simulation inside cylinder)


August 23, 2013, 05:40 

#23 
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Martin Novák
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August 23, 2013, 06:45 

#24  
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Basta
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Quote:
Which case do you mean because at the begining i posted my valve studying case problem . After that i posted just a simple case to generalize my problem which is just a cylinder see post #18. So i thought that you told me about the simple case which is just a cyliner and i had the same problem at the interface between the inlet and the wall with elements with very high pressure. 

August 23, 2013, 12:24 

#25  
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Martin Novák
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Quote:


August 26, 2013, 09:22 

#26 
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Basta
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Dear Martin,
Excuse me , I attached a wrong case. Here are the write one. Best regards, Mina 

August 28, 2013, 09:08 

#27 
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Basta
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Hello all,
Did anybody have a solution for my problem? Best regards, Mina 

August 28, 2013, 11:46 

#28 
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Ehsan
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Location: Iran
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Hi Mina
I changed divScheme by adding bounded to the terms with phi and it seems run without problem. Code:
divSchemes { default none; div(phi,U) bounded Gauss GammaV 0.5; //was 0.5 1.0 div(phi,k) bounded Gauss limitedLinear 1; div(phi,epsilon) bounded Gauss limitedLinear 1; //div((nuEff*dev(grad(U).T()))) Gauss linear; div((nuEff*dev(T(grad(U))))) Gauss linear; //div((nuEff*dev(grad(U).T()))) Gauss linear faceMDLimited Gauss linear 0.85; //div(phi,U) Gauss linearUpwindV faceMDLimited linear 0.68; //was 0.5 1.0 //div(phi,k) Gauss linearUpwind faceMDLimited Gauss linear 0.2; //div(phi,epsilon) Gauss linearUpwind faceMDLimited Gauss linear 0.91; //div((nuEff*dev(grad(U).T()))) Gauss linearUpwind faceMDLimited Gauss linear 0.85; }
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August 29, 2013, 04:29 

#29  
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Basta
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Quote:
Dear Ehsan, I got this error after modifying divScheme: Code:
> FOAM FATAL IO ERROR: Unknown convection scheme bounded Valid convection schemes are : 1 ( Gauss ) file: /home/fayez/Bureau/ehsan_test/system/fvSchemes::divSchemes::div(phi,U) at line 30. From function convectionScheme<Type>::New(const fvMesh&, const surfaceScalarField&, Istream&) in file /home/opencfd/OpenFOAM/OpenFOAM2.1.1/src/finiteVolume/lnInclude/convectionScheme.C at line 97. FOAM exiting 

August 29, 2013, 05:06 

#30 
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Ehsan
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it works fine for me!
Code:
Time = 293 smoothSolver: Solving for Ux, Initial residual = 0.00302422, Final residual = 1.63714e05, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 0.00286406, Final residual = 1.40895e05, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.00163624, Final residual = 9.37947e06, No Iterations 3 GAMG: Solving for p, Initial residual = 0.00816459, Final residual = 4.26288e05, No Iterations 2 time step continuity errors : sum local = 4.67106, global = 1.04718, cumulative = 1602.9 smoothSolver: Solving for epsilon, Initial residual = 0.000209883, Final residual = 1.19376e06, No Iterations 2 bounding epsilon, min: 138.041 max: 2.9235e+08 average: 9.09496e+06 smoothSolver: Solving for k, Initial residual = 0.000215752, Final residual = 8.36107e07, No Iterations 3 ExecutionTime = 1.22 s ClockTime = 1 s Time = 294 smoothSolver: Solving for Ux, Initial residual = 0.00299998, Final residual = 1.35978e05, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 0.00283594, Final residual = 1.3551e05, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.00161325, Final residual = 8.1245e06, No Iterations 3 GAMG: Solving for p, Initial residual = 0.00804053, Final residual = 1.87376e05, No Iterations 2 time step continuity errors : sum local = 2.05042, global = 1.73826, cumulative = 1604.64 smoothSolver: Solving for epsilon, Initial residual = 0.000211165, Final residual = 1.19876e06, No Iterations 2 smoothSolver: Solving for k, Initial residual = 0.000214596, Final residual = 8.11414e07, No Iterations 3 ExecutionTime = 1.22 s ClockTime = 1 s Time = 295 smoothSolver: Solving for Ux, Initial residual = 0.00269395, Final residual = 1.35094e05, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 0.00268798, Final residual = 1.34244e05, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.00138372, Final residual = 8.11865e06, No Iterations 3 GAMG: Solving for p, Initial residual = 0.00734547, Final residual = 2.72228e05, No Iterations 2 time step continuity errors : sum local = 2.98289, global = 1.95487, cumulative = 1606.59 smoothSolver: Solving for epsilon, Initial residual = 0.000209892, Final residual = 1.16917e06, No Iterations 2 smoothSolver: Solving for k, Initial residual = 0.000211634, Final residual = 8.11507e07, No Iterations 3 ExecutionTime = 1.23 s ClockTime = 1 s Time = 296 smoothSolver: Solving for Ux, Initial residual = 0.00260183, Final residual = 1.34072e05, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 0.00259837, Final residual = 1.34191e05, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.00141887, Final residual = 8.04426e06, No Iterations 3 GAMG: Solving for p, Initial residual = 0.00717931, Final residual = 2.6446e05, No Iterations 2 time step continuity errors : sum local = 2.89427, global = 1.88796, cumulative = 1608.48 smoothSolver: Solving for epsilon, Initial residual = 0.000205624, Final residual = 1.19057e06, No Iterations 2 smoothSolver: Solving for k, Initial residual = 0.000209961, Final residual = 7.95193e07, No Iterations 3 ExecutionTime = 1.23 s ClockTime = 1 s Time = 297 smoothSolver: Solving for Ux, Initial residual = 0.00246914, Final residual = 1.34119e05, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 0.00247703, Final residual = 1.31678e05, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.00133655, Final residual = 8.0358e06, No Iterations 3 GAMG: Solving for p, Initial residual = 0.00733201, Final residual = 2.25581e05, No Iterations 2 time step continuity errors : sum local = 2.47292, global = 1.16714, cumulative = 1609.65 smoothSolver: Solving for epsilon, Initial residual = 0.000209202, Final residual = 1.17054e06, No Iterations 2 bounding epsilon, min: 15.779 max: 2.92343e+08 average: 9.09302e+06 smoothSolver: Solving for k, Initial residual = 0.000209555, Final residual = 8.24086e07, No Iterations 3 ExecutionTime = 1.24 s ClockTime = 1 s Time = 298 smoothSolver: Solving for Ux, Initial residual = 0.00262038, Final residual = 1.38132e05, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 0.00253905, Final residual = 1.35259e05, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.00141747, Final residual = 8.14806e06, No Iterations 3 GAMG: Solving for p, Initial residual = 0.00717604, Final residual = 2.40071e05, No Iterations 2 time step continuity errors : sum local = 2.62906, global = 0.296388, cumulative = 1609.95 smoothSolver: Solving for epsilon, Initial residual = 0.00020553, Final residual = 1.17951e06, No Iterations 2 smoothSolver: Solving for k, Initial residual = 0.000212137, Final residual = 7.99386e07, No Iterations 3 ExecutionTime = 1.24 s ClockTime = 1 s Time = 299 smoothSolver: Solving for Ux, Initial residual = 0.00262036, Final residual = 1.34373e05, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 0.00243577, Final residual = 1.31502e05, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.0013605, Final residual = 8.10666e06, No Iterations 3 GAMG: Solving for p, Initial residual = 0.00723721, Final residual = 1.94311e05, No Iterations 2 time step continuity errors : sum local = 2.13106, global = 0.691298, cumulative = 1609.26 smoothSolver: Solving for epsilon, Initial residual = 0.000209559, Final residual = 1.17209e06, No Iterations 2 bounding epsilon, min: 24.6726 max: 2.92349e+08 average: 9.09526e+06 smoothSolver: Solving for k, Initial residual = 0.000210269, Final residual = 8.30651e07, No Iterations 3 ExecutionTime = 1.24 s ClockTime = 1 s Time = 300 smoothSolver: Solving for Ux, Initial residual = 0.00257644, Final residual = 1.3703e05, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 0.0025284, Final residual = 1.34594e05, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 0.00143646, Final residual = 8.13869e06, No Iterations 3 GAMG: Solving for p, Initial residual = 0.00720673, Final residual = 2.29444e05, No Iterations 2 time step continuity errors : sum local = 2.51267, global = 1.1237, cumulative = 1608.13 smoothSolver: Solving for epsilon, Initial residual = 0.000206882, Final residual = 1.18584e06, No Iterations 2 smoothSolver: Solving for k, Initial residual = 0.000211105, Final residual = 7.97838e07, No Iterations 3 ExecutionTime = 1.25 s ClockTime = 1 s End
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Injustice Anywhere is a Threat for Justice Everywhere.Martin Luther King. To Be or Not To Be,Thats the Question! The Only Stupid Question Is the One that Goes Unasked. 

August 29, 2013, 05:16 

#31  
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Basta
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I tried also with your folders (0 , constant, system) but I got the same error don't know why
Quote:


August 29, 2013, 05:37 

#32 
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Ehsan
Join Date: Oct 2012
Location: Iran
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you use 2.1.1 vesion? download 2.2.0 or 2.2.1 version so that can run.
__________________
Injustice Anywhere is a Threat for Justice Everywhere.Martin Luther King. To Be or Not To Be,Thats the Question! The Only Stupid Question Is the One that Goes Unasked. 

August 29, 2013, 19:19 

#33  
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Basta
Join Date: Jul 2013
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Quote:
I used OpenFoam 2.2 and finally, I didn't have this error. But after launching Paraview, I realised that my problem didn't been solved. Here are the attachement that i got with elements at the interface between the inlet and wall with high pressure ! 

August 30, 2013, 04:46 

#34 
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Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,209
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why youe mesh is so coarse? use a finer mesh and see if changes.
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Injustice Anywhere is a Threat for Justice Everywhere.Martin Luther King. To Be or Not To Be,Thats the Question! The Only Stupid Question Is the One that Goes Unasked. 

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