Problem regarding CFD

Hi,

I am making a wall climbing robot and I need to find out the thrust and pressure difference generated by my impeller. I don't know the initial and boundary conditions and need to CFD. Then how should I proceed?

Edu ​​​​​​​3DEXPERIENCE ​​​​​​​SIMULIA ​​​​​​​Simulation ​​​​​​​