a bit related - modern turbofan engines are running extremely hot and to avoid damage/melting to the turbine blades the blades are cooled from inside and with t

a bit related - modern turbofan engines are running extremely hot and to avoid damage/melting to the turbine blades the blades are cooled from inside and with the boundary layer by the cooling air flowing out of the holes in the blade https://www.researchgate.net/figure/Evolution-of-turbine-entry-temperature-and-future-trend_fig4_221919089 https://www.researchgate.net/figure/Evolution-of-turbine-ent... https://www.youtube.com/watch?v=4FqMLyo7fyU https://www.youtube.com/watch?v=4FqMLyo7fyU