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Forum: OpenFOAM Running, Solving & CFD

October 14, 2016, 06:36

Replies: 19

mass flow split BC

Views: 3,708

Posted By rudolf.hellmuth

Sorry, I wanted to delete this post.

Sorry, I wanted to delete this post.

Forum: OpenFOAM Running, Solving & CFD

October 14, 2016, 06:34

Replies: 19

mass flow split BC

Views: 3,708

Posted By rudolf.hellmuth

Ok, I've figured it out. The BC class generated...

Ok, I've figured it out. The BC class generated by codedFixedValue has a the constructor:

flowSplit1FixedValueFvPatchVectorField::
flowSplit1FixedValueFvPatchVectorField
(
const fvPatch& p,...

Forum: OpenFOAM Running, Solving & CFD

October 13, 2016, 08:29

Replies: 19

mass flow split BC

Views: 3,708

Posted By rudolf.hellmuth

I transcribed the codedFixedValue that I used...

I transcribed the codedFixedValue that I used above to prototype my BC to an actual C++ BC class. I used the template given by the foamNewBC -f -v script. The new BC name is flowSplit, and its class...

Forum: OpenFOAM Running, Solving & CFD

September 19, 2016, 06:37

Replies: 19

mass flow split BC

Views: 3,708

Posted By rudolf.hellmuth

I wasn't happy with the fixed constant pressure...

I wasn't happy with the fixed constant pressure field at outlet1, because it looked very artificial to have both the pressure at the inlet and outlet2 changing depending on the split ratio....

Forum: OpenFOAM Running, Solving & CFD

September 12, 2016, 09:13

Replies: 19

mass flow split BC

Views: 3,708

Posted By rudolf.hellmuth

If you really want to impose the inlet velocity...

If you really want to impose the inlet velocity BC, you can try this coded BC for all outlets but one.

U:

/*--------------------------------*- C++ -*----------------------------------*\
|...

Forum: OpenFOAM Running, Solving & CFD

September 9, 2016, 06:45

Replies: 19

mass flow split BC

Views: 3,708

Posted By rudolf.hellmuth

I've got a slightly different, which has worked...

I've got a slightly different, which has worked very well.

Since I knew the inlet flow rate (Q_in=40e-6 m^3 s^-1), I imposed outlet flow rates (70% / 30%), and left the velocity field as...

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