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CLC number: TB651

On-line Access: 2007-12-08

Received: 2007-05-21

Revision Accepted: 2007-07-03

Crosschecked: 0000-00-00

Cited: 4

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Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2008 Vol.9 No.1 P.93~98


Computational fluid dynamic simulation of an inter-phasing pulse tube cooler

Author(s):  Xiao-bin ZHANG, Zhi-hua GAN, Li-min QIU, Hua-xiang LIU

Affiliation(s):  Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   zhangxbin@zju.edu.cn, Gan_zhihua@zjuem.zju.edu.cn

Key Words:  Inner-phasing, Pulse tube cooler (PTC), Computational fluid dynamic (CFD)

Xiao-bin ZHANG, Zhi-hua GAN, Li-min QIU, Hua-xiang LIU. Computational fluid dynamic simulation of an inter-phasing pulse tube cooler[J]. Journal of Zhejiang University Science A, 2008, 9(1): 93~98.

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%A Xiao-bin ZHANG
%A Zhi-hua GAN
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%A Hua-xiang LIU
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T1 - Computational fluid dynamic simulation of an inter-phasing pulse tube cooler
A1 - Xiao-bin ZHANG
A1 - Zhi-hua GAN
A1 - Li-min QIU
A1 - Hua-xiang LIU
J0 - Journal of Zhejiang University Science A
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SP - 93
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A071259

An inter-phasing pulse tube cooler (IPPTC) consists of two pulse tube units, which are connected to each other at hot ends of the pulse tubes through a needle valve. This paper presents the computational fluid dynamic (CFD) results of an IPPTC using a 2D axis-symmetrical model. General results such as the phase difference between pressure and velocity at cold end and hot end, the temperature profiles along the wall, the available lowest temperature as well as its oscillations and the coefficient of performance (COP) for IPPTC are presented. The formation of DC flow and its effects on the performance of the cooler are investigated and analyzed in detail. Turbulence, which is partially responsible for the poor overall performance of a single orifice pulse tube cooler (OPTC), is found to be much reduced in IPPTC and its performance is improved significantly compared with the single OPTC.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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