Help Needed for FLUENT setup in removal efficiency
 

Hi guys,

I am new to FLUENT, but my project requires using it to demonstrate a CFD on removal efficiency on a model.
The model is inside a pipe, and first create a vortex, then using baffles to remove some of the particulates in the gas stream.
I could mesh my model, but I have difficulties in setting it up.
The particulates are metal oxides, and about 20% wt in the stream, the stream is just air. Pressure drop through the pipe is less than 1 psi. Length of pipe 8ft.
Your answers are highly appreciated.