Accession Number : ADP000520

Title :   The Mixing of Swirling Flows,

Corporate Author : WASHINGTON UNIV SEATTLE

Personal Author(s) : Oates,Gordon C.

Report Date : JUN 1982

Pagination or Media Count : 7

Abstract : The results of an investigation of the effects of swirling the inner stream upon the mixing rate of co-annular flows will be presented. The presentation will consist of three major sections: Model Of An Ideal Mixer With Swirl--The overall investigation was motivated by the desire to lead to understanding of some of the mechanisms existing in real aircraft mixers. To this end, the effects of swirl upon the performance of ideal mixers was determined so that the unavoidable losses due to the presence of non-axial momentum etc. could be determined (in comparison to conventional ideal mixers). EXPERIMENTAL PROGRAM--A large high pressure air storage system has been adapted to provide flow rates of up to a total of ten pounds per second. PRELIMINARY RESULTS--The data is in the process of being reduced and interpreted.

Descriptors :   *Ejectors, *Fluid flow, *Thrust augmentation, Mass flow, Flow fields, Workshops, Vertical takeoff aircraft, Short takeoff aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE