OpenFOAM - Inlet Velocity

Inlet Velocity

Hi
My inlet velocity profile is Ux=0.011451/((0.052458+y^2)^0.5), and Uy=0.05y/((0.052458+y^2)^0.5) for diffuser width 0.02 m.

I am using OPENFOAM in windows 10. Can you kindly tell me what should I do?

OpenFOAM 28-06-19, 6:23 p.m. moghimi4999

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Please try this Boundary condition.

inlet
 {
 type codedFixedValue;
 value uniform (0 0 0);
 name varyinginletBC; //name of new BC
 code
 #{
 const fvPatch& boundaryPatch = patch(); //get patch
 const vectorField& Cf = boundaryPatch.Cf(); //get face center coordinates
 vectorField& field = *this;
 
 forAll(Cf,facel)
 {
 scalar y = Cf[facel].y();
 field[facel] = vector(0.011451/(sqrt(0.052458+sqr(y))),0.05*y/(sqrt(0.052458+sqr(y))),0);
 }
 #};
 }

07-05-20, 2:03 a.m. divyesh

There is another option available called groovyBC. Please check this:

http://openfoamwiki.net/index.php/Contrib/groovyBC

07-05-20, 2:28 a.m. divyesh

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