I am working on DEM-VOF coupling. I am going in the way as cfdemSolverPISO is done. I have added the VOF of OpenFOAM to DEM with no compilation error and no run time error, but do not get expected outcome. I am using test case of "sphere falling in two fluid medium, water and air). I think I haven't set alphaEqn.H correctly to account for voidFraction.
I am referring the article "Extended CFD–DEM for free‐surface flow with multi‐size granules by L. Jing C. Y. Kwok, Y. F. Leung, Y. D. Sobral" . Kindly, Can someone help me in this regard?
Indian Institute of Technology, Delhi