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Gauss DEShybrid usage

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Old   June 6, 2016, 05:18
Question Gauss DEShybrid usage
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Max Vorstadt
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Hi! I'm trying to achieve convergence in my kwSST simulation and one of the parameters that I want to change is the div(phi,U). I have checked on Openfoam's website and apparently the only thing that has to be added on fvSchemes is:

Code:
divSchemes 
{ 
    div(phi,U)          Gauss DEShybrid 
    linear                        // scheme 1 
    linearUpwind grad(U)          // scheme 2 
    0.65                          // DES coefficient, typically = 0.65 
    30                            // Reference velocity scale 
    2                             // Reference length scale 
    0                             // Minimum sigma limit (0-1) 
    1;                            // Maximum sigma limit (0-1) 
}
But when I add this (I'm using 3.0+, of course), the error output is:

Code:
--> FOAM FATAL IO ERROR:
Unknown discretisation scheme DEShybrid
Valid schemes are:
...
Does anybody know where the problem could be? Both DEShybrid.C and DEShybrid.H are on the src folder...

Thanks in advance!
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Old   June 6, 2016, 06:45
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Jan
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Hi,

you have to include the library (where the Scheme is located in) in your controlDict.

Best regards,
Jan
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Old   November 18, 2019, 18:09
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Gang Wang
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Quote:
Originally Posted by jet_engine View Post
Hi! I'm trying to achieve convergence in my kwSST simulation and one of the parameters that I want to change is the div(phi,U). I have checked on Openfoam's website and apparently the only thing that has to be added on fvSchemes is:

Code:
divSchemes 
{ 
    div(phi,U)          Gauss DEShybrid 
    linear                        // scheme 1 
    linearUpwind grad(U)          // scheme 2 
    0.65                          // DES coefficient, typically = 0.65 
    30                            // Reference velocity scale 
    2                             // Reference length scale 
    0                             // Minimum sigma limit (0-1) 
    1;                            // Maximum sigma limit (0-1) 
}
But when I add this (I'm using 3.0+, of course), the error output is:

Code:
--> FOAM FATAL IO ERROR:
Unknown discretisation scheme DEShybrid
Valid schemes are:
...
Does anybody know where the problem could be? Both DEShybrid.C and DEShybrid.H are on the src folder...

Thanks in advance!

Hi!



Have u solved your problem? Because I also encounter this....
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Old   January 20, 2022, 07:00
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Balaji
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Quote:
Originally Posted by Gang Wang View Post
Hi!



Have u solved your problem? Because I also encounter this....
Include this library at the start of your controlDict, it should work then



libs (turbulenceModelSchemes);

application pimpleFoam;

startFrom startTime;

startTime 0.;

stopAt endTime;

endTime 0.005;

deltaT 0.0001;

writeControl adjustableRunTime;
saeed jamshidi, Gang Wang and xCFD like this.
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