Propeller Modelling Compressibility. Activate Energy Equation?
I am modelling the design of a fairly small propeller (Diameter of 1.1m) and performing some basic performance analysis in Fluent. I am analysing two rotational speeds giving maximum tip speeds of M~0.5 and M~0.8 - so nothing too close to supersonic ranges and only just verging into the transonic region. I believe that a pressure-based solver will be suitable as nowadays it can handle some compressibility effects reasonably well. What I don't know is whether to activate the energy equation or not.
The point of my study is not to provide supremely accurate results especially due to coronavirus, I have no access to high-performance computers and so need to complete it on my laptop. From the Fluent User/Theory Guides, I can't work out whether it would be necessary to activate the energy equation for my setup as I don't have time to perform my own tests to compare the two. Is it likely to make a non-negligible difference?
Any advice would be appreciated, cheers!