Mach wave, shock wave, expansion wave and the need for sharp leading edge thin airfoil sections in supersonic flight are explained. The sound barrier is revisited and the concept of Mach cone created by the needle like body in front of fighter aircraft is explained. The fact that drag in supersonic flight can increase even if the drag coefficient decreases is explained.
#aerospaceengineering #gateaerospaceengineering
#aerodynamics
#fluidmechanics
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