Need to simulate suction of cotton bolls through pipe?

Hello,

I am new to this flow simulation and if I asked something wrong please excuse me.
I need to design a system with suction pump and pipe which I will be used to suck cotton bolls (one at a time) of weight 4-5 gm. In this, I need to find out the pump specifications like rpm and power etc. Also, I need to know total negative pressure needed to suck cotton bolls. So, I want to simulate all these things in Solidworks first to know pressure requirements, velocity, and air flow rate etc. Therefore, I want to know how to proceed for this. Can anybody share some video links or similar work documents so that I can learn from there.

Thanks.

SolidworksFlow Simulation