Boundary Conditions with GroovyBC, Normal Gradient
 

Hello,

I´d like to implement some boundary conditions with groovyBC, but it seems, that that doesn`t work like I think it should ;).
Here is my problem:

Without groovyBc it´s possible to implement a fixed normal gradient with

boundary
{
type fixedGradient;
gradient 100;
}

Now i need this expression with a dependency of a variable, computet in a step befor. So i tried

boundary
{
type groovyBC;
gradientExpression "Var-fixed";
variable "Var{boundary2}=Var2; fixed=100";
value uniform 0;
}

For a calculating a single value, for example for a Dirichlet boundary condition, it works.

Did I make a mistake in my definition of the boundary condition? Are there any good documentations for groovyBC, where i can find such things?


Best regards
treima


I´m sorry, this might be the wrong Forum, i didn´t pay attention...

hi dear treima.did you figure out the problem?

Yes, there is a solution to this problem.

Have a look at this thread:
http://www.cfd-online.com/Forums/ope...-gradient.html


regards

treima