Ansys Learning Forum Forums Discuss Simulation Fluids How should the viscosity of particle be set when using non-Newtonian fluids? Reply To: How should the viscosity of particle be set when using non-Newtonian fluids?

Prashanth
Ansys Employee

The particle visosity does influence the breakup mechanism. But considering the point mass approach of DPM, it is not a good idea to use the same shear-dependent law. The point masses does not enclose flow within them, that causes shear.

Actually, the code check makes sure one uses the same viscosity definition for both VOF and discrete phase, when using the transition model.