Coflow in cylindrical annular and core
As mentioned in the title, I am looking to solve a coflow along a cylinder, with two different fluids in the annulus and the core respectively. The fluids are separated by a thin wall in between and I need to solve for the heat exchange between the fluids.
Coming from external flows background, I am not really sure how to approach this problem in OpenFOAM. My hunch is as such:
1. create 2 rectangular domains and have them transformed into cylindrical coordinates, mapping the inner wall boundary as the common interface
2. specify some thin wall treatment for that common interface boundary.
I have been searching online using keywords like coflow, annular, core, openfoam, cylindrical, but have not been successful in finding cases that are similar to my problem. Would appreciate if I can get some help from here.
Would really appreciate if someone can provide some clues.
Does OpenFOAM enable solving the governing equations on transformed coordinates in the first place?
Or will I really need to create a cylindrical domain using blockMesh, one centre tube with 4 side arc blocks? I have seen this mesh being used before for cylinder channel flow, but I thought it would be more elegant to use transformation and the boundary conditions might be more direct.
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