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International Heat Transfer Conference 4

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

A MODEL FOR ANALYSIS OF THE TEMPERATURE DISTRIBUTION WITH INJECTION OF A HEATED JET INTO AN ISOTHERMAL FLOW

J. W. Ramsey
University of Minnesota, Minneapolis, Minnesota

R. J. Goldstein
University of Minnesota, Minneapolis, MN 55455, U.S.A.

E. R. G. Eckert
Department of Mechanical Engineering University of Minnesota, Minneapolis, Minnesota 55455 USA

DOI: 10.1615/IHTC4.2510
pages 1-11

Abstract

The temperature distribution downstream of a jet entering a turbulent boundary layer is predicted using a simple conduction model. The turbulent eddy diffusivity used in the model is determined empirically from previous experiments. The model is also compared to earlier measurements following a point source of heat and a point source of mass which were each located on a wall over which a turbulent boundary layer was flowing. The analysis is particularly successful at low injection rates. If a number of injection holes (or sources) are present, superposition will permit use of the model to predict the temperature field.

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