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Forum: OpenFOAM Running, Solving & CFD

June 24, 2006, 02:08

Replies: 10

Source term

Views: 2,724

Posted By chris1980

thanks Hrv! just to make su

thanks Hrv!

just to make sure I get you right:

I want to solve a Xi-eqn and the problem is to implement the following source terms

C1*[grad(XXi)]^2 - C2*Xi

the first term I...

Forum: OpenFOAM Running, Solving & CFD

June 23, 2006, 12:54

Replies: 10

Source term

Views: 2,724

Posted By chris1980

ups there is type volScalar

ups there is type

volScalarField gradXiVar2 = fvc::grad(XiVar) & fvc::grad(XiVar)

Forum: OpenFOAM Running, Solving & CFD

June 23, 2006, 12:52

Replies: 10

Source term

Views: 2,724

Posted By chris1980

the main problem is the realis

the main problem is the realistation of the squared gradient [grad(Xi)]^2

I have tried to do this like:

volScalarField gradXiVar2 = fvc::grad(XiVar) &
...
solve
(
...
-...

Forum: OpenFOAM Running, Solving & CFD

June 23, 2006, 10:35

Replies: 10

Source term

Views: 2,724

Posted By chris1980

I fell some trouble to impleme

I fell some trouble to implement a scalar transport eqn with the following source term:

C1*[grad(Xi)]^2 - C2*epsilon/k * rho * Xi

C1,C2: constants
epsilon: turbulent dissipation
k:...

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