Minimising flow losses within the pulse tube of a Stirling pulse tube cryocooler

被引：1
|
作者：
Abolghasemi, M. A. [1 ]
Stone, R. [1 ]
Dadd, M. [1 ]
Bailey, P. [1 ]
Liang, K. [2 ]
机构：
[1] Univ Oxford, Dept Engn Sci, Oxford, England
[2] Univ Sussex, Dept Engn & Design, Brighton, E Sussex, England
来源：
27TH INTERNATIONAL CRYOGENICS ENGINEERING CONFERENCE AND INTERNATIONAL CRYOGENIC MATERIALS CONFERENCE 2018 (ICEC-ICMC 2018) | 2019年 / 502卷
基金：
英国工程与自然科学研究理事会;
关键词：
INERTANCE;
D O I：
10.1088/1757-899X/502/1/012044
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Successful operation of Stirling pulse tube cryocoolers relies on minimising flow mixing within the pulse tube. Hence, the pulse tube and the flow straighteners at either end must be designed with great care. In this study, the flow within the pulse tube of an existing Stirling pulse tube cryocooler is numerically analysed and alternative flow straightener designs are suggested. The numerical simulation have been carried out using CONVERGE CFD, a finite volume Navier-Stokes solver. The standar k-epsilon RANS turbulence model has been used to account for the effects of turbulence within the pulse tube.
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页数：5
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