NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
The deflection of a jet by confining surfacesThrust vectoring can be provided by the turning of a jet exhaust by the presence of confining surfaces. This approach is analogous to the upper surface blowing (USB) concept. Mean velocities, velocity autocorrelations, and pressure-velocity correlations are measured. From the autocorrelation curves, the Taylor microscales and the integral length scales are calculated. Convection velocities are calculated from the velocity space-time correlations. Two different confining surfaces (one flat, one with large curvature) are placed adjacent to the lip of a circular nozzle, and the resultant effects on the flow field are determined. In addition, two velocity ratios (exit plane velocity to ambient stream velocity) are examined. The velocity measurements were made with a laser Doppler velocimeter in conjunction with a phase locked-loop processor. Pressure measurements were made using a 1/8th inch condensor type microphone.
Document ID
19820017277
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Catalano, G. D.
(Virginia Univ. Charlottesville, VA, United States)
Morton, J. B.
(Virginia Univ. Charlottesville, VA, United States)
Humphris, R. R.
(Virginia Univ. Charlottesville, VA, United States)
Date Acquired
August 10, 2013
Publication Date
May 1, 1981
Publication Information
Publication: APL The 1981 JANNAF Propulsion Meeting, Vol 2
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
82N25153
Funding Number(s)
CONTRACT_GRANT: NGR-47-005-219
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available