Accession Number : AD0772675
Title : Simplified Lay-Out of Supersonic, Heterogeneous Ejectors.
Descriptive Note : Rept. for Jun 72-Apr 73,
Corporate Author : AEROSPACE RESEARCH LABS WRIGHT-PATTERSON AFB OHIO
Personal Author(s) : Hasinger,Siegfried H.
Report Date : NOV 1973
Pagination or Media Count : 50
Abstract : A generalized analysis for supersonic ejectors with heterogeneous operating media and constant area mixing, which leads to a simple diagram for determining approximate values of ejector mass and area ratio, driver-gas Mach-number and temperature, is presented. Simplifications are obtained by considering that conservation of momentum and continuity dominates the ejector process, while conservation of energy, a condition which complicates ejector calculations, is of little influence in case of a supersonic ejector and amenable to an approximate treatment. The ejector layout diagram is also modified to provide information on off-design conditions. In a separate treatment the approximate ejector analysis is used as a first step for a refined layout, which more accurately observes conservation of energy, requiring an iteration process for a solution. (Modified author abstract)
Descriptors : *Supersonic diffusers, *Ejectors, Supersonic flow, Fluid dynamics, Reynolds number, Friction, Nozzle area ratio, Iterations
Subject Categories : Fluid Mechanics
Jet and Gas Turbine Engines
Distribution Statement : APPROVED FOR PUBLIC RELEASE