Abstract
This Chapter explains the inlet. In a jet engine, it is the first component on the engine and interacts directly with the atmosphere. An inlet must handle a wide range of mass flow, duct air to the engine with low total pressure loss and low drag, diffuse the flow over its length to high pressure and low Mach number, minimize distortions in the flow field exiting the inlet and in addition below weight, small size, and mechanically simple. Inlet mass flow performance, pressure performance, subsonic inlets, and supersonic inlets also find discussion in this chapter. Internal compression inlet operation is described with an example for the readers benefit. Additive drag, external compression inlets, external mixed compression inlets with are given with examples in some cases. Finally hypersonic flight considerations are calculated for inlets for jet engines. In summation, inlets and their significance and workings are thoroughly discussed here.
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