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International Heat Transfer Conference 7

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

MEASUREMENTS OF VELOCITY AND TEMPERATURE PROFILES OF A HEATED SURFACE JET DISCHARGING INTO A CROSS FLOW

Lawrence A. Kennedy
Mechanical Engineering Department, College of Engineering, University of Illinois at Chicago, 842 W.Taylor Str.,M/S 251, Chicago 60607, IL, USA; Department of Mechanical Engineering The Ohio State University Columbus, Ohio 43210

Robert H. Chang
Department of Mechanical and Aerospace Engineering State University of New York at Buffalo Amherst, New York 14260 USA

DOI: 10.1615/IHTC7.200
pages 111-116

Abstract

Detailed measurements of the velocity and temperature were made on a heated surface jet discharging into a cross flow. All measurements were performed in a tilting water channel.
Thermistor temperature probes mounted on a three dimensional traverse were used to measure the local temperature.
Flow velocities and turbulence intensities were measured using a laser doppler velocimeter set up in the back scatter fringe mode.
Local measurements of the velocity and temperature fields of the surface jet were determined as functions of the Richardson number, aspect ratio of the jet, ratio of the crossflow velocity to jet velocity and the Reynolds number of the jet. The results presented include centerline trajectories, jet plume widths, temperature isotherms and turbulence intensities. The results are compared with earlier measurements.

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