What kind of model do you need? You can model an axial copressor using the power equation, with temperature and pressure inputs and, pressure and power consumption as outputs. What are you trying to model?

i try to make a Axial model to use it as surge model avoidance

like greitzer model

i need general model 

A general model don't gives you the dynamic characteristics. May be you need a electric motor model, acoppled with a mechacnical machine like a compressor.

We can help to you if you give to us more iinformation

Regards