Abstract: This work present the investigation of heat transfer and flow characteristics of air jet impingement over heated tube. Two cases are studied in this investigation, first case is considering isothermal tube at constant temperature of 453 K, and second case is compressed air with inlet temperature of 453 K entering at tube inlet. The velocity profile, and Nusselt number over the tube are evaluated in this study, by comparing the jet slot height, effect of change in Reynolds number, effect of change in distance of jet to impingement tube, effect of splitting of slot into one, two and three slots, and the effect of changing the distance between two slots. The results are proposed in terms of Nusselt number, for the case of isothermal tube. Similarly, for the second case, the results are plotted in terms of drop in temperature of hot air at the exit end of the tube. The comparison is done for the effective cooling by using air jet impingement system.
Keywords: Jet, Jet geometry, Nusselt number, Reynolds number, Temperature.
Title: Numerical Investigation of Heat and Flow Characteristic of Air Jet Impingement Over Heated Tube
Author: Mr. Mukund R. Valse, Dr. R. S. Maurya
International Journal of Mechanical and Industrial Technology
ISSN 2348-7593 (Online)
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