干旱区生态环境知识资源中心(Arid): NUMERICAL INVESTIGATION OF THE EFFECTS OF GEOMETRICAL PARAMETERS ON THE VORTEX SEPARATION PHENOMENON INSIDE A RANQUE-HILSCH VORTEX TUBE USED AS AN AIR SEPARATOR IN A HELICOPTER'S ENGINE

Arid

DOI	10.3846/aviation.2018.2414
	NUMERICAL INVESTIGATION OF THE EFFECTS OF GEOMETRICAL PARAMETERS ON THE VORTEX SEPARATION PHENOMENON INSIDE A RANQUE-HILSCH VORTEX TUBE USED AS AN AIR SEPARATOR IN A HELICOPTER'S ENGINE
	Bazgir, Adib; Nabhani, Nader
通讯作者	Nabhani, N
来源期刊	AVIATION
ISSN	1648-7788
EISSN	1822-4180
出版年	2018
卷号	22 期号:1 页码:13-23
英文摘要	Air separators are fitted to helicopter engine intakes to remove potentially harmful dust from the influent air. Their use is necessary in desert environments to eliminate the risk of rapid engine wear and subsequent power deterioration. However, their employment is concomitant with an inherent loss in inlet pressure and, in some cases, auxiliary power. There are three main technologies: vortex tubes, barrier filters, and integrated inlet particle separators. In this work, a vortex tube is investigated numerically. The study was conducted on the number and axial angle of inlet nozzles. Two and three-dimensional models are investigated at a steady state condition then the standard k-epsilon turbulence model is utilised for determining the flow and temperature fields. The finite volume method base on a Computational Fluid Dynamic (CFD) model is verified through the comparison with experimental data and numerical results of a vortex tube, reported in literature sources. Increasing the number of inlet nozzles, increases the sensitivity of the temperature reduction and the highest possible temperature reduction can be obtained. A vortex tube with an axial angle inlet nozzle of yields better performance. The numerical simulation results indicated that the CFD model is capable of predicting the vortex separation phenomenon inside a Ranque-Hilsch vortex tube with different geometrical parameters.
英文关键词	vortex separation phenomenon air separator Ranque-Hilsch vortex tube inlet nozzle cold and hot outlet CFD
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000443051000003
WOS关键词	DIVERGENT HOT TUBE ; ENERGY SEPARATION ; TEMPERATURE SEPARATION ; CFD ANALYSIS ; FLOW-FIELD ; REFRIGERATOR ; SIMULATION ; DEVICE
WOS类目	Engineering, Aerospace
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332972
作者单位	[Bazgir, Adib; Nabhani, Nader] Petr Univ Technol, Ahwaz, Iran
推荐引用方式 GB/T 7714	Bazgir, Adib,Nabhani, Nader. NUMERICAL INVESTIGATION OF THE EFFECTS OF GEOMETRICAL PARAMETERS ON THE VORTEX SEPARATION PHENOMENON INSIDE A RANQUE-HILSCH VORTEX TUBE USED AS AN AIR SEPARATOR IN A HELICOPTER'S ENGINE[J],2018,22(1):13-23.
APA	Bazgir, Adib,&Nabhani, Nader.(2018).NUMERICAL INVESTIGATION OF THE EFFECTS OF GEOMETRICAL PARAMETERS ON THE VORTEX SEPARATION PHENOMENON INSIDE A RANQUE-HILSCH VORTEX TUBE USED AS AN AIR SEPARATOR IN A HELICOPTER'S ENGINE.AVIATION,22(1),13-23.
MLA	Bazgir, Adib,et al."NUMERICAL INVESTIGATION OF THE EFFECTS OF GEOMETRICAL PARAMETERS ON THE VORTEX SEPARATION PHENOMENON INSIDE A RANQUE-HILSCH VORTEX TUBE USED AS AN AIR SEPARATOR IN A HELICOPTER'S ENGINE".AVIATION 22.1(2018):13-23.