Nikhil Tamhankar
Ansys Employee

Hi ,

You can specify mass or velocity inlet for any block using the Opening Boundary Condition. Select the surface --> Right Click and go to Assign Thermal BC --> Opening. Keep in mind that the block must be assigned the correct material such as water or glycol and that if the model also contains air, the two fluids must be seperated by a solid in between to avoid mixing of fluid. Otherwise, the water blocks can be used stand alone after switiching off the Solve Inside for the air "Region".