CFD Online Discussion Forums

Function component in field

Posted June 9, 2017 at 05:10 by kindle
Updated June 9, 2017 at 13:05 by kindle

On the explaination of laplacianFoam
This is extracted from the blog dyfluid.com.

Code:

volVectorField gradT(fvc::grad(T));//创建gradT场，其值为fvc::grad(T)，即为∇T显性离散的值          
volScalarField gradTx        
(             IOobject             
              ("gradTx",
                 runTime.timeName(),
                 DimensionedFieldmesh,
                 IOobject::NO_READ,
                 IOobject::AUTO_WRITE

...

kindle

New Member

Posted in programming

Views 2352 Comments 0 kindle is offline

Reology with Fortran program available

Posted June 7, 2017 at 13:11 by kindle

This phd on Reology may be interesting.
Code : http://www.vvpf.net/download.html

Here he talked about memory function and a big memory footprint which will need special treatment in programming.

Quote:

Originally Posted by JonW

Hi there again,
I see what you mean. I am pretty sure that this is not in OF. You have to program it your self

I just send you the paper you asked, and it might be a use after all, for your problem.
If you look at Eq. (8) in the paper (see also eq

...

kindle

New Member

Posted in Viscoelastic

Views 1512 Comments 0 kindle is offline

scotch may not be built by icc.

Posted May 23, 2017 at 06:02 by kindle
Updated June 7, 2017 at 13:13 by kindle

Here is a proof. So I give up the route to compile OpenFOAM by icc.

Quote:

Originally Posted by wyldckat

Hi Achim,

I wanted the output and error messages to be in the same file, so I could have an historic detailing of where/when the errors occurred. This way I have separate history lines...

Either way, my suspicion is that you edited the following code in "etc/config/settings.sh":

Code:

    x86_64)
        case "$WM_ARCH_OPTION" in
        32)
            export

...

kindle

New Member

Posted in informatic issues

Views 1407 Comments 0 kindle is offline

SAS – cutting on your computational budget in an unsteady*manner

Posted May 18, 2017 at 17:47 by Avr.Tomer

Tags ansys, fluent, model, turbulence

The following is taken from*CFD ISRAEL*blog (thoughts of a CFD blogger), addressing a branch of Scale Resolving Simulation known as 2nd generation URANS.
The specific SAS model is a*2-equation*unsteady RANS model, able to get very good quantitative results for many unsteady flows even on a relatively coarse mesh.

Scale Adaptive Simulation (SAS) – cutting on your computational budget in an unsteady*manner - CFD ISRAEL blog

Avr.Tomer

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Posted in Uncategorized

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Understanding The k-ε Turbulence*Model

Posted May 18, 2017 at 17:42 by Avr.Tomer

The k-ε turbulence model still remains among the most popular. Most known is the Jones-Launder*k-ε turbulence model.

In the following newly posted*on CFD ISRAEL blog (CFD thoughts of a blogger), a*thorough evaluation of the model and its drawbacks*are presented.

Understanding The k-ε Turbulence*Model - CFD ISRAEL blog

Avr.Tomer

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Posted in Uncategorized

Views 1050 Comments 0 Avr.Tomer is offline