NDLI: Viscous Effects on Performance of Linear Plug Micronozzles

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Viscous Effects on Performance of Linear Plug Micronozzles

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Jason, M. Pearl William, F. Louisos Darren, L. Hitt
Copyright Year	2014
Abstract	A parametric, two-dimensional, computational study examining steady-state plug micronozzle performance has been conducted. As part of the study, a new method for plug contour construction is proposed. The performance of several different nozzle geometries is compared to that of a traditional plug nozzle geometry designed using the Method of Characteristics (MOC). New nozzle designs are derived from the MOC based design and geometric transformations are used to produce plug nozzles of reduced length. Spike lengths corresponding to 60, 50, 40, and 27% of the MOC nozzle’s length are examined. The throat Reynolds number is varied from 80–820. Thrust is used a metric to assess nozzle performance. The geometry which maximizes performance is found to vary with Reynolds number. It is observed that reducing the plug length improves thrust production for the range of Reynolds number examined.
File Format	PDF
ISBN	9780791846421
DOI	10.1115/IMECE2014-37612
Volume Number	Volume 1: Advances in Aerospace Technology
Conference Proceedings	ASME 2014 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2014-11-14
Publisher Place	Montreal, Quebec, Canada
Access Restriction	Subscribed
Subject Keyword	Geometry Design Construction Micronozzles Reynolds number Nozzles Steady state Thrust
Content Type	Text
Resource Type	Article

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