I'm simulation the inlet manifold of an Port Fuel Injection(PFI) engine. I don't understand how to proceed with this problem. I have the following doubts:

1) While designing the CAD model of the manifold pipe should I design it as a hollow pipe or a solid pipe.

2) Should i design any injectors or can I use the "Injection" option that is available in the fluent.

3) What are the steps that are to be followed to simulate this model.

I need to know the following parameters :

1) The evaporation distance and evaporation of the fuel from the point of injection.

2) The wall film formation on the inlet manifold

3) SMD