CFD analysis of De Laval Nozzle Geometry & Reverse Flow Cavitation Phenomenon
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 1
Abstract
De laval nozzle is a convergent divergent type nozzle which has the ability to convert the chemical energy with high pressure in to kinetic energy with high velocity and low pressure. In other words the device takes in minimal power and delivers tremendous amounts of output power used in jet and rocket engines. The pressure and velocity distribution across the nozzle are very important and they entirely depend on the cross section or the geometry. Reverse flow is caused in the negative pressure gradient region and reverse flow Cavitation is very much useful in under water applications. The present study is focussed on analysis of de laval nozzle geometries and reverse flow phenomenon. The nozzle is designed and analysed in Ansys fluent. Pressure distribution and velocity values are noted down and these are compared with the theory of gas dynamics. The case of reverse flow is also simulated and contours are drawn to the available geometry.
Authors and Affiliations
Sree Harsha Bandaru, Arjun Singh
Keywords
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