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Title :長円形2噴流の衝突熱伝達特性
Title alternative :Heat Transfer Characteristics by Impingement Jets Issuing from Dual Elongated Slot Nozzles
Authors :親川, 兼勇
松田, 昇一
屋我, 実
玉城, 厚司
Authors alternative :Oyakawa, Kenyu
Matsuda, Shoichi
Yaga, Minoru
Tamashiro, Atsushi
Issue Date :25-Sep-1999
Abstract :The effects of spacing between dual jets on the heat transfer characteristics and flow behaviors over the plate surface were investigated experimentally when the dual slot jets impinge on the target plate. The local heat transfer distributions were measured for various spacings at small nozzle-to-plate separation distances and the flow pattern also visualized by the oil-titanium IV oxide method. An infrared radiometer with a two-dimensional array of InSb sensor was employed to clarify space varying in the flow and heat transfer accompanying by the interferences between jets, and jet and spent flow. The characteristics of heat transfer, flow patterns and thermal distributions change with the spacing of the dual jets and the nozzle-to-plate separation. The phenomenon of axes switching, which is caused by the differences in the self-induced velocity in the non-circular vortices, was observed farther downstream compared with that of a single impingement jet. These phenomena consequently played an important role in the heat transfer enhancement.
Type Local :雑誌掲載論文
ISSN :03875016
Publisher :日本機械学会
URI :http://hdl.handle.net/20.500.12000/133
Citation :日本機械学会論文集. B編 = Transactions of the Japan Society of Mechanical Engineers. B Vol.65 no.637 p.148 -154
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Engineering)

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