[rshettCFD]

Greetings everyone,

I am working on dilute sand slurry flow in pipes (0.001 v/v) with water as the carrier phase. The issue I am having is that there is increased sand settling observed ONLY at the boundary layer (even above critical settling velocity)

The turbulence model I am using is the k-epsilon model, RNG, Dispersed flow.
My Y+ is around 15.
The sand size is 0.0003 m.
The first layer thickness in my mesh is 0.0006 m.

My underlying question is regarding the C_mu value to tackle to spike in turbulent kinetic energy at the Boundary layers.

Any help will be deeply appreciated.

Thanks, and kind regards.