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Forum: OpenFOAM Running, Solving & CFD

May 22, 2013, 14:37

Replies: 14

no solution in second order schemes

Views: 3,615

Posted By immortality

then whats your opinion about this fvScheme has...

then whats your opinion about this fvScheme has been used for rhoCentralFoam,is it first order or second order:
divSchemes
{
default none;
div(tauMC) Gauss linear;
div(phi) Gauss...

Forum: OpenFOAM Running, Solving & CFD

May 22, 2013, 12:40

Replies: 14

no solution in second order schemes

Views: 3,615

Posted By immortality

and also in rhoPimpleFoam what changes seems...

and also in rhoPimpleFoam what changes seems better to be done to have a better second order solution?(for example in div(phi,K) its better to be limitedLinear or linearUpwind?)
ddtSchemes
{
...

Forum: OpenFOAM Running, Solving & CFD

May 22, 2013, 12:28

Replies: 14

no solution in second order schemes

Views: 3,615

Posted By immortality

thank you but I didn't take the answer of 2 and...

thank you
but I didn't take the answer of 2 and 3 questions exactly,is it sufficient to change div(rho,phi) to a second order scheme so that our problem be second order?(when a run is called second...

Forum: OpenFOAM Running, Solving & CFD

May 22, 2013, 10:37

Replies: 14

no solution in second order schemes

Views: 3,615

Posted By immortality

Hi Heckman and others! sorry for long...

Hi Heckman and others!
sorry for long delay,other necessary to solve problems occurred.
could you please help me with these subjects:
1)what does a "convection dominated" problem mean?mean when we...

Forum: OpenFOAM Running, Solving & CFD

April 16, 2013, 10:27

Replies: 14

no solution in second order schemes

Views: 3,615

Posted By immortality

thank you Hakon.my case is unsteady...

thank you Hakon.my case is unsteady compressible.so what are your advices?

Forum: OpenFOAM Running, Solving & CFD

April 15, 2013, 12:42

Replies: 14

no solution in second order schemes

Views: 3,615

Posted By immortality

no solution in second order schemes

my problem is running well by first order schemes like upwind but when change schemes to higher order like limitedLinear 1.0 it crashes.
the results seem fine so far should I necessarily have a run...

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