I have searched for articles on Thermal Analysis of Propeller but couldn't find one. Can I assume the aircraft company don't perform heat transfer simulation and analysis of high speed propeller? Isn't that important? What kind of simulation can be done of propeller besides the flow simulation of propeller obtaining drag, thrust and efficiency of it? Thank you.
As a propeller turns through the air at subsonic speeds, the dynamics of creating the pressure distributions in the air surrounding the propeller blade can be accurately modeled as being isothermal (no significant and persistent temperature gradients are created) and adiabatic (no significant net heat transfer from one location to another occurs within the flow field).
This means that the thermodynamic state of the air coming into the propeller disc is almost exactly the same as its state when exiting it, and for this reason there is no significant thermodynamic analysis needed to successfully account for the behavior of a propeller as long as it is subsonic.