CFD Analysis of CD Nozzle with Sharp Throat and CD Nozzle with Curved Throat

A nozzle is one of the major components of a jet engine whose prime objective is to produce thrust to propel the aircraft or rocket. It is a specially engineered tube through which extremely hot gases flow. It is designed in such a unique way that allows fluid (usually a gas or a mixture of gases) to accelerate to high speeds, mostly supersonic or hypersonic, by controlling its shape and dimensions. In detail, we can say that the nozzle is used as a pathway for the exhaust gases to mix with the atmospheric air, to produce thrust and to establish a continuous mass flow rate through the engine. It converts thermal and pressure energy into kinetic energy which in turn produces the thrust required by the aircraft. The nozzle (especially the CD nozzle) shows its strong use in fields like rocket propulsion, jet engines to propel aircraft, aerospace research, electricity production, supersonic flow measurement, wind tunnels, gas expansion, cooling, etc.