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Old   August 23, 2013, 06:07
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Martin Novák
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Quote:
Originally Posted by mina.basta View Post
Dear Martin,

here is the test case
Could you add to the test case the "system" folder. I would like to see settings of the numerics also.
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Old   August 23, 2013, 06:25
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Quote:
Originally Posted by novakm View Post
Could you add to the test case the "system" folder. I would like to see settings of the numerics also.
Here is the system folder of the simple case (simulation inside cylinder)
Attached Files
File Type: gz system.tar.gz (5.4 KB, 2 views)
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Old   August 23, 2013, 06:40
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Quote:
Originally Posted by mina.basta View Post
Here is the system folder of the simple case (simulation inside cylinder)
the boundary conditions does not correspond to the geometry.

Prepare the test case properly and post it here. After that I may take a look on it.

BR

Martin
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Old   August 23, 2013, 07:45
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Quote:
Originally Posted by novakm View Post
the boundary conditions does not correspond to the geometry.

Prepare the test case properly and post it here. After that I may take a look on it.

BR

Martin
Dear Martin,

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.
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Old   August 23, 2013, 13:24
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Quote:
Originally Posted by mina.basta View Post
Dear Martin,

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.
Just the simplest case that shows the problem you have.
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Old   August 26, 2013, 10:22
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Dear Martin,

Excuse me , I attached a wrong case. Here are the write one.

Best regards,
Mina
Attached Files
File Type: gz system.tar.gz (5.4 KB, 1 views)
File Type: gz 0.tar.gz (15.6 KB, 1 views)
File Type: gz constant.tar.gz (80.4 KB, 2 views)
File Type: gz extendedFeatureEdgeMesh.tar.gz (21.6 KB, 1 views)
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Old   August 28, 2013, 10:08
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Hello all,

Did anybody have a solution for my problem?

Best regards,

Mina
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Old   August 28, 2013, 12:46
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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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Old   August 29, 2013, 05:29
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Quote:
Originally Posted by immortality View Post
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;
}

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/OpenFOAM-2.1.1/src/finiteVolume/lnInclude/convectionScheme.C at line 97.

FOAM exiting
what do you think ?
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Old   August 29, 2013, 06:06
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it works fine for me!
Code:
Time = 293

smoothSolver:  Solving for Ux, Initial residual = 0.00302422, Final residual = 1.63714e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00286406, Final residual = 1.40895e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00163624, Final residual = 9.37947e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00816459, Final residual = 4.26288e-05, 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 = 1.19376e-06, 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 = 8.36107e-07, No Iterations 3
ExecutionTime = 1.22 s  ClockTime = 1 s

Time = 294

smoothSolver:  Solving for Ux, Initial residual = 0.00299998, Final residual = 1.35978e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00283594, Final residual = 1.3551e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00161325, Final residual = 8.1245e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00804053, Final residual = 1.87376e-05, 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 = 1.19876e-06, No Iterations 2
smoothSolver:  Solving for k, Initial residual = 0.000214596, Final residual = 8.11414e-07, No Iterations 3
ExecutionTime = 1.22 s  ClockTime = 1 s

Time = 295

smoothSolver:  Solving for Ux, Initial residual = 0.00269395, Final residual = 1.35094e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00268798, Final residual = 1.34244e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00138372, Final residual = 8.11865e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00734547, Final residual = 2.72228e-05, 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 = 1.16917e-06, No Iterations 2
smoothSolver:  Solving for k, Initial residual = 0.000211634, Final residual = 8.11507e-07, No Iterations 3
ExecutionTime = 1.23 s  ClockTime = 1 s

Time = 296

smoothSolver:  Solving for Ux, Initial residual = 0.00260183, Final residual = 1.34072e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00259837, Final residual = 1.34191e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00141887, Final residual = 8.04426e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00717931, Final residual = 2.6446e-05, 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 = 1.19057e-06, No Iterations 2
smoothSolver:  Solving for k, Initial residual = 0.000209961, Final residual = 7.95193e-07, No Iterations 3
ExecutionTime = 1.23 s  ClockTime = 1 s

Time = 297

smoothSolver:  Solving for Ux, Initial residual = 0.00246914, Final residual = 1.34119e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00247703, Final residual = 1.31678e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00133655, Final residual = 8.0358e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00733201, Final residual = 2.25581e-05, 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 = 1.17054e-06, 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 = 8.24086e-07, No Iterations 3
ExecutionTime = 1.24 s  ClockTime = 1 s

Time = 298

smoothSolver:  Solving for Ux, Initial residual = 0.00262038, Final residual = 1.38132e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00253905, Final residual = 1.35259e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00141747, Final residual = 8.14806e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00717604, Final residual = 2.40071e-05, 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 = 1.17951e-06, No Iterations 2
smoothSolver:  Solving for k, Initial residual = 0.000212137, Final residual = 7.99386e-07, No Iterations 3
ExecutionTime = 1.24 s  ClockTime = 1 s

Time = 299

smoothSolver:  Solving for Ux, Initial residual = 0.00262036, Final residual = 1.34373e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00243577, Final residual = 1.31502e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.0013605, Final residual = 8.10666e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00723721, Final residual = 1.94311e-05, 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 = 1.17209e-06, 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 = 8.30651e-07, No Iterations 3
ExecutionTime = 1.24 s  ClockTime = 1 s

Time = 300

smoothSolver:  Solving for Ux, Initial residual = 0.00257644, Final residual = 1.3703e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.0025284, Final residual = 1.34594e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00143646, Final residual = 8.13869e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00720673, Final residual = 2.29444e-05, 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 = 1.18584e-06, No Iterations 2
smoothSolver:  Solving for k, Initial residual = 0.000211105, Final residual = 7.97838e-07, No Iterations 3
ExecutionTime = 1.25 s  ClockTime = 1 s

End
Attached Files
File Type: gz 0.tar.gz (15.5 KB, 4 views)
File Type: gz constant.tar.gz (80.3 KB, 5 views)
File Type: gz system.tar.gz (5.5 KB, 4 views)
File Type: gz extendedFeatureEdgeMesh.tar.gz (21.7 KB, 4 views)
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The Only Stupid Question Is the One that Goes Unasked.
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Old   August 29, 2013, 06:16
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I tried also with your folders (0 , constant, system) but I got the same error don't know why


Quote:
Originally Posted by immortality View Post
it works fine for me!
Code:
Time = 293

smoothSolver:  Solving for Ux, Initial residual = 0.00302422, Final residual = 1.63714e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00286406, Final residual = 1.40895e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00163624, Final residual = 9.37947e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00816459, Final residual = 4.26288e-05, 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 = 1.19376e-06, 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 = 8.36107e-07, No Iterations 3
ExecutionTime = 1.22 s  ClockTime = 1 s

Time = 294

smoothSolver:  Solving for Ux, Initial residual = 0.00299998, Final residual = 1.35978e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00283594, Final residual = 1.3551e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00161325, Final residual = 8.1245e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00804053, Final residual = 1.87376e-05, 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 = 1.19876e-06, No Iterations 2
smoothSolver:  Solving for k, Initial residual = 0.000214596, Final residual = 8.11414e-07, No Iterations 3
ExecutionTime = 1.22 s  ClockTime = 1 s

Time = 295

smoothSolver:  Solving for Ux, Initial residual = 0.00269395, Final residual = 1.35094e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00268798, Final residual = 1.34244e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00138372, Final residual = 8.11865e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00734547, Final residual = 2.72228e-05, 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 = 1.16917e-06, No Iterations 2
smoothSolver:  Solving for k, Initial residual = 0.000211634, Final residual = 8.11507e-07, No Iterations 3
ExecutionTime = 1.23 s  ClockTime = 1 s

Time = 296

smoothSolver:  Solving for Ux, Initial residual = 0.00260183, Final residual = 1.34072e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00259837, Final residual = 1.34191e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00141887, Final residual = 8.04426e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00717931, Final residual = 2.6446e-05, 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 = 1.19057e-06, No Iterations 2
smoothSolver:  Solving for k, Initial residual = 0.000209961, Final residual = 7.95193e-07, No Iterations 3
ExecutionTime = 1.23 s  ClockTime = 1 s

Time = 297

smoothSolver:  Solving for Ux, Initial residual = 0.00246914, Final residual = 1.34119e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00247703, Final residual = 1.31678e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00133655, Final residual = 8.0358e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00733201, Final residual = 2.25581e-05, 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 = 1.17054e-06, 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 = 8.24086e-07, No Iterations 3
ExecutionTime = 1.24 s  ClockTime = 1 s

Time = 298

smoothSolver:  Solving for Ux, Initial residual = 0.00262038, Final residual = 1.38132e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00253905, Final residual = 1.35259e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00141747, Final residual = 8.14806e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00717604, Final residual = 2.40071e-05, 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 = 1.17951e-06, No Iterations 2
smoothSolver:  Solving for k, Initial residual = 0.000212137, Final residual = 7.99386e-07, No Iterations 3
ExecutionTime = 1.24 s  ClockTime = 1 s

Time = 299

smoothSolver:  Solving for Ux, Initial residual = 0.00262036, Final residual = 1.34373e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.00243577, Final residual = 1.31502e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.0013605, Final residual = 8.10666e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00723721, Final residual = 1.94311e-05, 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 = 1.17209e-06, 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 = 8.30651e-07, No Iterations 3
ExecutionTime = 1.24 s  ClockTime = 1 s

Time = 300

smoothSolver:  Solving for Ux, Initial residual = 0.00257644, Final residual = 1.3703e-05, No Iterations 3
smoothSolver:  Solving for Uy, Initial residual = 0.0025284, Final residual = 1.34594e-05, No Iterations 3
smoothSolver:  Solving for Uz, Initial residual = 0.00143646, Final residual = 8.13869e-06, No Iterations 3
GAMG:  Solving for p, Initial residual = 0.00720673, Final residual = 2.29444e-05, 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 = 1.18584e-06, No Iterations 2
smoothSolver:  Solving for k, Initial residual = 0.000211105, Final residual = 7.97838e-07, No Iterations 3
ExecutionTime = 1.25 s  ClockTime = 1 s

End
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Old   August 29, 2013, 06:37
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you use 2.1.1 vesion? download 2.2.0 or 2.2.1 version so that can run.
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Old   August 29, 2013, 20:19
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Quote:
Originally Posted by immortality View Post
you use 2.1.1 vesion? download 2.2.0 or 2.2.1 version so that can run.
Dear Ehsan,

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 !
Attached Images
File Type: jpg problem.jpg (65.2 KB, 13 views)
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Old   August 30, 2013, 05:46
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why youe mesh is so coarse? use a finer mesh and see if changes.
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