mesh conversion for dispersed liquid drop flowing upward in a continous phase
 

hi to all

i m working on a problem same as yhe problem " rise of bubble with terminal velocity" and so i have several problem in my work and i hope you can help me solve them:

1) i have crated a mesh by gambit and exported it to openfoam but when i try solver" interfoam" it shows time step continuity error" and does not converge.(i used gambit since i couldn't create my mesh which is rectangular cube with an cylindrical nozzle at the bottom in 3D )

2)for another try i created a simple mesh and i decided to place an sphere of second liquid(like bubble in bubble column) at the bottom but i cannot install "funkysetFields" utility.

i hope very very much that you can help me create my intended mesh and do one of two ways mentioned above to solve my problem.

best regards for you all