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RESEARCH PAPERS

Measurements of the Thermal Characteristics of Heated Turbulent Jets in Crossflow

[+] Author and Article Information
S. A. Sherif

Department of Mechanical Engineering, University of Miami, Coral Gables, FL 33124

R. H. Pletcher

Department of Mechanical Engineering, Iowa State University, Ames, IA 50011

J. Heat Transfer 111(4), 897-903 (Nov 01, 1989) (7 pages) doi:10.1115/1.3250803 History: Received June 07, 1988; Online October 20, 2009

Abstract

An experimental investigation of the thermal characteristics of heated turbulent jets discharging into a cross-flowing stream in a water channel is reported. Hot water was injected vertically upward from a circular pipe located near the channel bottom to simulate the heated jet. Fiber-film probes along with appropriate anemometers and bridges were operated in the constant-current mode as cold films to measure both mean and fluctuating temperatures. Profiles of mean and rms temperatures are presented for heated turbulent jets at velocity ratios of 1, 4, and 7 and for jet discharge temperatures approximately 28 to 42° C higher than the free-stream temperature. Measurements were carried out in the jet and its wake both in and outside the jet plane of symmetry.

Copyright © 1989 by ASME
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