HOW TO MODEL PART OF THE BRUSH IN SLIDING MESH SYS
 

HI In my research I want to model the hydrodynamic performances of the oxidation ditch, a widely used wastewater treatment equipment. The oxidation ditches are typically circular basins,the are typicaly areated at the top by the brush,but the brush are not totaly immerged into the water.

Today I want to use fluent to model the rotation of the brushes,someone told me that just need to model the immerged part of the brush(http://dspace.lib.cranfield.ac.uk:80...0Gancarski.pdf) I do not underatand how to realize the drive of the brush in the water by just mesh the brush that is in water. How to realize it in fluent??