[Ricardo1992]

Hello all,

I am new to OpenFoam, I hope that you may help me. I have run a 3D free-jet

I created the mesh as two concentric cylinders (please see attached figure), where the left-side of the interior cylinder is the boundary condition for the velocity. This configuration runs well but I want to modify my mesh.

My group uses another code which only works with a structured mesh. I need to compare both codes.

I want to set up a boundary condition using an "if statement" to transfer the cartesian coordinate to a cylindrical . The way that I implemented it on other code is shown in the attached image (python). Basically, if the radius is smaller than a value, the velocity profile will be set up to that equation .

The velocity depends on time, I implemented that boundary condition using a groovyBC ( I am using the version 2.3.1.)

Any suggestion how can I implement the spatial boundary condition ?








using two cylinder

[Taataa]

You can either use codedFixedValue to construct it on the fly or make one from scratch following instruction here.

[tomf]

Hi,

As long as you are using groovyBC, why not try using the examples, the circulatingSplash example seems to include some of the functionality you may want to use.

Regards,
Tom