Experimental investigation of the thermal fluctuations in hot and cold fluids mixing in a T-junction filled with spherical particles

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	Experimental investigation of the thermal fluctuations in hot and cold fluids mixing in a T-junction filled with spherical particles
	Wang, Yongwei 1,2; Wang, Ping 3; Lu, Tao 2
刊名	APPLIED THERMAL ENGINEERING
	2014-10-05
卷号	71 期号:1 页码:310-316
关键词	Thermal fluctuation T-junction Mixing Spherical particle
英文摘要	The turbulent mixing of hot and cold fluids in a T-junction filled with a porous medium composed of stainless steel spherical particles has been experimentally investigated in order to determine the influence of the ratio of the flow in the main duct to that in the branch duct, and the temperature difference between the mixing fluids, on the thermal fluctuations. The temperature of the cold water in the branch duct was fixed at 22.5 degrees C, and the temperature differences between the cold water and the hot water in the main duct were 7.5 degrees C, 15 degrees C or 20 degrees C. The ratios of the flow in the main duct to that in the branch duct were 2, 4, or 8. The experimental results indicated that the largest fluctuations of instantaneous temperatures were in the middle and upper part of the mixing zone. On increasing the flow ratio, the region of strong temperature fluctuations became smaller. The distribution of hot and cold water in the mixing zone was found to depend on the flow ratio, which had a significant effect on the distribution of normalized mean and root mean square temperatures. The temperature difference had a limited effect on the temperature fluctuations. (C) 2014 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
研究领域[WOS]	Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
关键词[WOS]	CONVECTION HEAT-TRANSFER ; POROUS PLATE CHANNELS ; FORCED-CONVECTION ; TEMPERATURE-FLUCTUATIONS ; NUMERICAL-SIMULATION ; FLOW ; ENHANCEMENT ; TURBULENT ; TEE ; BLOCKS
收录类别	SCI
语种	英语
WOS记录号	WOS:000345490600034
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/106017]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China 3.Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yongwei,Wang, Ping,Lu, Tao. Experimental investigation of the thermal fluctuations in hot and cold fluids mixing in a T-junction filled with spherical particles[J]. APPLIED THERMAL ENGINEERING,2014,71(1):310-316.
APA	Wang, Yongwei,Wang, Ping,&Lu, Tao.(2014).Experimental investigation of the thermal fluctuations in hot and cold fluids mixing in a T-junction filled with spherical particles.APPLIED THERMAL ENGINEERING,71(1),310-316.
MLA	Wang, Yongwei,et al."Experimental investigation of the thermal fluctuations in hot and cold fluids mixing in a T-junction filled with spherical particles".APPLIED THERMAL ENGINEERING 71.1(2014):310-316.