[alimea]

Hi all

I want to create this BC:



on "inner part" of this polar cavity:



I have written this code:

type     groovyBC;
   variables   (
          "teta=atan( pos().y/pos().x );  r=pow((pow(pos().x,2)                        
           +pow(pos().y,2)),0.5);"
                    );
valueExpression    
    "vector(-sin(teta),cos(teta),0)*256/pow(3.14,4)*pow((3.14/4+teta),  
     2)*pow((3.14/4-teta),2)";  
value uniform (0 0 0);

Does it do what I went?

Thanks