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双管式气波制冷机射流振荡和出口温降的数值模拟与实验研究

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Indexed by:期刊论文

Date of Publication:2008-04-15

Journal:应用基础与工程科学学报

Included Journals:EI、ISTIC、CSCD

Volume:16

Issue:2

Page Number:264-269

ISSN No.:1005-0930

Key Words:双管式气波制冷机;射流;控制管;膨胀比

Abstract:采用重整化群κ-ε模型,用数值模拟的方法计算了气波制冷机中射流的振荡和流动的形态.研究了不同控制管长,不同膨胀比的操作条件下振荡频率、温降的关系.计算和实验结果表明,控制管长与振荡频率为线性关系,相同控制管长条件下,膨胀比对振荡频率几乎无影响.但随着膨胀比的增大,出口气体温降越来越大.

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