Accession Number : ADP000522
Title : Considerations on Steady- and Nonsteady-Flow Ejectors,
Corporate Author : GEORGE WASHINGTON UNIV WASHINGTON DC
Personal Author(s) : Foa,Joseph V.
Report Date : JUN 1982
Pagination or Media Count : 30
Abstract : A broad examination is made of the flow induction spectrum, from the steady-flow to the pulsating-flow ejector, with special attention to the relationships of dissipation and performance to nonsteadiness, size of migrating eddies, and diffusion. A boundary-value approach is recommended for the comparative evaluation of induction modes. The limits of attainable thrust or lift augmentation are shown to be in some cases a good deal higher than those predicted by initial-value analyses.
Descriptors : *Ejectors, *Thrust augmentation, *Steady flow, *Unsteady flow, Boundary value problems, Lift, Mixing, Aerospace craft, Vertical takeoff aircraft, Short takeoff aircraft
Distribution Statement : APPROVED FOR PUBLIC RELEASE