Synchronal Measurement of Flow Structure and Heat Transfer of Impingement Jet

CORC > 工程热物理研究所 > 中国科学院工程热物理研究所 > Journal of Thermal Science

	Synchronal Measurement of Flow Structure and Heat Transfer of Impingement Jet
	Naomichi SAJI2; Minoru YAGA1; Masaaki ISHIKAWAl; Kenyu OYAKAWA1; Shoichi MATSUDA1
刊名	JOURNAL OF THERMAL SCIENCE
	2010
卷号	19 期号:3 页码:228,233
关键词	Impingement Jet Forced Convection Heat Transfer Ring Vortex Longitudinal Vortex
英文摘要	This paper will present the characteristics of flow behavior and thermal field of both free and impingement jet is sued from a circular orifice nozzle at Re = 8900. The flow behavior of a single round jet and impingement jet was observed by smoke flow visualization recorded by a high speed camera using 5000 frame per second. Heat trans fer coefficient on the impingement surface was measured by means of infrared camera (TVS-8500, Avio) with a two-dimensional array of Indeum-Antimony (In Sb) sensors varying in the separation distance between the nozzle and the target plate. The heat transfer coefficient changes in time and spatial. Therefore, the root mean square dis tribution of the heat transfer was obtained from the data. As a result, it was confirmed that the longitudinal vortex was observed outside of the ring vortex, and then the longitudinal vortex was penetrated in the jet flow. Moreover, the high value of root mean square of the heat transfer coefficient has spread radially in stripy manner, which is caused as the results of the longitudinal vortexes flowing in the radial direction on the impingement plate.
公开日期	2013-01-06
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/51607]
专题	工程热物理研究所_Journal of Thermal Science
推荐引用方式 GB/T 7714	Naomichi SAJI2,Minoru YAGA1,Masaaki ISHIKAWAl,et al. Synchronal Measurement of Flow Structure and Heat Transfer of Impingement Jet[J]. JOURNAL OF THERMAL SCIENCE,2010,19(3):228,233.
APA	Naomichi SAJI2,Minoru YAGA1,Masaaki ISHIKAWAl,Kenyu OYAKAWA1,&Shoichi MATSUDA1.(2010).Synchronal Measurement of Flow Structure and Heat Transfer of Impingement Jet.JOURNAL OF THERMAL SCIENCE,19(3),228,233.
MLA	Naomichi SAJI2,et al."Synchronal Measurement of Flow Structure and Heat Transfer of Impingement Jet".JOURNAL OF THERMAL SCIENCE 19.3(2010):228,233.