The moving gas or fluid has lower pressure, a lower pressure means that there are less atom collisions so there's less heat, it's E=3/2kT for the solid ball theory I did this shit 4 years ago, waste of my time. It's just heat engines really.
How is it going with these theories guys? My last theory was for a fusion reactor, maybe you can entertain yourself with it if you want, it was essentially having 2 cancelling counter rotating magnetic fields in the x,y and z axis, the accelerator should have been the size of a room to achieve boron fusion if I remember correctly, never got to anything with it, I wasted 3 months of my life trying to design an electric motor running sim after sim, magnetic fields are nothing as we think they are, things don't work in real life as we think they would. My motor was a coreless induction motor it worked in sims but I don't think I could have built it, the electronics are out of my league.