文献类型：期刊文献

中文题名：Computational fluid dynamic simulation of an inter-phasing pulse tube cooler

英文题名：Computational fluid dynamic simulation of an inter-phasing pulse tube cooler

作者：Xiao-bin ZHANG[1];Zhi-hua GAN[1];Li-min QIU[1];Hua-xiang LIU[2]

机构：[1]Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China;[2]College of Science, Guangdong Ocean University, Zhanjiang 524088, China

年份：2008

卷号：9

期号：1

起止页码：93

中文期刊名：浙江大学学报（英文版）A辑：应用物理与工程

收录：CSTPCD、、Scopus、CSCD2011_2012、CSCD

基金：Project supported by the National Natural Science foundation of China (No. 50706042);the Science and Technology Department of Zhejiang Province (No. 2006C24G2010027);the Natural Science Foundation of Zhejiang Province (No. Y105519), China

语种：英文

中文关键词：制冷机;液体动力学;内部定向;脉冲管

外文关键词：Inner-phasing, Pulse tube cooler （PTC）, Computational fluid dynamic （CFD）

中文摘要：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.

外文摘要：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.