Impact of Afterburner in propulsion system

Thrust augmentation : 52 to 70% trust increases in turbojet engine due to adding extra mass in combustion chamber.

Specific fuel consumption: it also increases because of, adding extra fuel in after burning process that causes to decrease thermal efficiency of overall system. Combustions occur at a lower pressure compare to main combuster.

Aerodynamic and nozzle effect: so due to after burner increased in exhaust temperature so specific volume also increased. It requires variable area conversion divergent nozzle.

Requirements:

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