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Jet mixing into a heated cross flow in a cylindrical duct: Influence of geometry and flow variationsTo examine the mixing characteristics of jets in an axi-symmetric can geometry, temperature measurements were obtained downstream of a row of cold jets injected into a heated cross stream. Parametric, non-reacting experiments were conducted to determine the influence of geometry and flow variations on mixing patterns in a cylindrical configuration. Results show that jet to mainstream momentum flux ratio and orifice geometry significantly impact the mixing characteristics of jets in a can geometry. For a fixed number of orifices, the coupling between momentum flux ratio and injector determines (1) the degree of jet penetration at the injection plane, and (2) the extent of circumferential mixing downstream of the injection plane. The results also show that, at a fixed momentum flux ratio, jet penetration decreases with (1) an increase in slanted slot aspect ratio, and (2) an increase in the angle of the slots with respect to the mainstream direction.
Document ID
19920006776
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hatch, M. S.
(California Univ. Irvine., United States)
Sowa, W. A.
(California Univ. Irvine., United States)
Samuelsen, G. S.
(California Univ. Irvine., United States)
Holdeman, J. D.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1992
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
E-6780
NAS 1.15:105390
AIAA PAPER 92-0773
NASA-TM-105390
Meeting Information
Meeting: Aerospace Sciences Meeting and Exhibit
Location: Reno, NV
Country: United States
Start Date: January 6, 1992
End Date: January 9, 1992
Sponsors: AIAA
Accession Number
92N15994
Funding Number(s)
PROJECT: RTOP 537-02-20
CONTRACT_GRANT: NAG3-1110
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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