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Velocity field of a round jet in a cross flow for various jet injection angles and velocity ratiosA subsonic round jet injected from a flat plate into a subsonic crosswind of the same temperature was investigated. Velocity and pressure measurements in planes perpendicular to the path of the jet were made for nominal jet injection angles of 45 deg, 60 deg, 75 deg, 90 deg, and 105 deg and for jet/cross flow velocity ratios of four and eight. The velocity measurements were obtained to infer the properties of the vortex pair associated with a jet in a cross flow. Jet centerline and vortex trajectories were determined and fit with an empirical equation that includes the effects of jet injection angle, jet core length, and jet/cross flow velocity ratios.
Document ID
19790024329
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Fearn, R. L. (Florida Univ. Gainesville, United States)
Weston, R. P. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1979
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
NASA-TP-1506
L-12775
Accession Number
79N32500
Funding Number(s)
PROJECT: RTOP 505-11-23-05
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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