Area-velocity relation in terms of Mach number is derived and used to understand the design of nozzles for accelerating the air flow at subsonic and supersonic speeds. The continuity equation and Euler equation are used in the derivation. The concept of choked flow is explained along with the importance of the throat of the nozzle which has sonic flow at Mach number of one. The design of supersonic nozzles and wind tunnels and rocket engines is explained using the area-velocity relation. This is also the De Laval nozzle.
#aerospaceengineering #gateaerospaceengineering
#aerodynamics
#fluidmechanics
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