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Title :不足膨張噴流が衝突する平板上の温度および圧力分布 : 第1報,円形噴流が垂直に衝突する場合
Title alternative :Temparature and Pressure Distributions on Plate in Underexpanded Impinging Jets : 1st Report, Circulat Jet Impinging Normal to Plate
Authors :屋我, 実
宮城, 司
与那嶺, 良一
大城, 智洋
瀬名波, 出
親川, 兼勇
Authors alternative :Yaga, Minoru
Miyagi, Tsukasa
Yonamine, Ryouichi
Ohshiro, Tomohiro
Senaha, Izuru
Oyakawa, Kenyu
Issue Date :25-Apr-2001
Abstract :The temperature and the pressure distributions on a plate in underexpanded impinging jets are experimentally and numerically studied in this paper. The experiments were performed by measuring the adiabatic wall temperature using infrared imaging camera and the wall static pressures on the impinging plate and by visualizing density fields using schlieren method. Numerical calculations were conducted by solving two dimensional axisymmetric compressible Navier-Stokes equations and three dimensional compressible Euler equations. The comparison between the experiments and the calculations shows that the decrease in the stagnation temperature is caused by a recirculating flow carrying the cold air from the jet boundary to the stagnation point. The temperature and pressure ; contours on the impinging plate illustrate azimuthal structures for the circular nozzle, which are also confirmed by the three dimensional calculations.
Type Local :雑誌掲載論文
ISSN :03875016
Publisher :日本機械学会
URI :http://hdl.handle.net/20.500.12000/239
Citation :日本機械学会論文集. B編 = Transactions of the Japan Society of Mechanical Engineers. B Vol.67 no.656 p.31 -37
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Engineering)

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