Pulsejet, Ramjet, and Scramjet Engines

Abstract

This chapter handles the first group of jet engines, namely, Ram-Based Engines, which includes pulsejet, ramjet, and scramjet engines. All the three types are composed of three stationary modules, namely, intake (or inlet), combustion chamber, and nozzle. Moreover, this category of engines cannot provide a static thrust and so never used alone in takeoff phase. A brief historical review for each engine is first given. Next both aerodynamic and thermodynamic analyses are given. The endeavor of these analyses is to calculate the generated thrust, fuel consumed, TSFC, specific impulse as well as the three efficiencies: propulsive, thermal, and overall.