Accession Number : ADA017855

Title :   Theoretical Study of Turbulent Mixing in Inclined Ducted Jets.

Descriptive Note : Final rept. 21 May 73-31 Mar 75,


Personal Author(s) : Duvvuri,Tirumalesa ; Raghunath,Boray S. ; Park,Joel T.

Report Date : JUN 1975

Pagination or Media Count : 209

Abstract : The problem of the inclined plane incompressible ducted turbulent jet mixing with a jet injected into an inclined duct has been analysed using the curvilinear system of coordinates. This system is chosen because of the curved flow field in the initial mixing regions and the existence of similarity solutions when analysed in the orthogonal curvilinear coordinate system referred to the jet centerline. Integral techniques and the similarity solutions have been utilized to reduce the flow field to a quasi two-dimensional flow field. Appropriate differential equations have been developed for the various types of flow regions. A generalized method for predicting the induced secondary flow is presented.

Descriptors :   *Jet mixing flow, *Thrust augmentation, Curved profiles, Short takeoff aircraft, Flow fields, Ducts, Ejectors, Mathematical models, Secondary flow, Theory, Angles, Problem solving, Incompressible flow

Subject Categories : FLUID MECHANICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE