Accession Number : ADP000514

Title :   An Overview of Supersonic Ejector Performance Analyses,

Corporate Author : ILLINOIS UNIV AT URBANA DEPT OF MECHANICAL AND INDUSTRIAL ENGINEERING

Personal Author(s) : Addy,A. L.

Report Date : JUN 1982

Pagination or Media Count : 51

Abstract : Three general approaches are available for the analysis of supersonic ejector performance. In order of complexity, they are: (1) one-dimensional flow models, (2) combined one- and two-dimensional interactive flow models with a superimposed viscous mixing component, and (3) application of finite-difference approximation of the Navier-Stokes equations to the overall flowfield within the ejector. The objectives of this presentation will be to provide a brief overview of each of the methods for predicting supersonic ejector performance, to outline the significant features and advantages/disadvantages of each method, and to suggest possible future directions for consideration.

Descriptors :   *Ejectors, *Thrust augmentation, *Thrust augmentor nozzles, *Supersonic flow, *Vertical takeoff aircraft, *Short takeoff aircraft, Mathematical models, Mathematical prediction, Performance(Engineering), One dimensional, Two dimensional, Mixing, Flow fields, Finite difference theory, Navier Stokes equations

Distribution Statement : APPROVED FOR PUBLIC RELEASE