I have attach an image of the face/surface that I am using for surface droplet injections. This annular region is the upper portion of a BWR .So , obviously the volume fraction of DPM is between 0-20%. Yes, the particles are inert.
I have attached another image describing the boundaries ,zones, internal surface .Please see the image and kindly let me know if you think I am wrong anywhere or need to change /modify anything. As I have divided full pipe into two zones(pre annular and annular zone) ,at the beginning of simulation I select cell zone materials as water-vapor . I have added mass and momentum source term through UDF with annular zone.
This is annular flow ,so vapor and droplet should be at the core and liquid film on the wall of pipe.
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