Reply To: Viscosity settings for non-Newtonian particles in dpm models using expression

[LI KUAN-LIN]

Thank you for your reply. I use the k-omega SBES turbulent model, while the Carreau Model uses functions related to shear rate.

I also tried to write the relationship between viscosity and shear rate as a UDF and import it into Fluent, hoping to represent the viscosity of particles using UDF. The UDF is as follows:

The fluid part can be successfully modeled using UDF. 

However, the following window pops up when modeling the particle part.

I think the UDF I wrote is only limited to fluid, so the particle cannot read this UDF. What I want to ask is, how can I modify the viscosity of the particle to match that of the fluid?