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  

Numerical Simulation and Experimental Study of Oscillation and Temperature Drop in a Two Tube Gas Wave Refrigerator

作　　者：陈圣涛[1] 胡大鹏[1] 杨军[1] 陈祖志[1] 代玉强[1] 朱彻[1] 刘润杰[1] 

机构地区：[1]大连理工大学化工设备与机械系,辽宁大连116012

出　　处：《应用基础与工程科学学报》2008年第2期264-269,共6页Journal of Basic Science and Engineering

基　　金：863计划(2006AA052216)

摘　　要：采用重整化群k-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.By using the RNG κ-ε model, the gas flow and oscillation in a two tube gas wave refrigerator are calculated with numerical simulation. Under different controlling pipe length and pressure ratio, the oscillation frequency and temperature drop are studied. The results show that the relationship between controlling pipe length and oscillation frequency is almost liner. The pressure ratio does not work on the oscillation frequency. As the pressure ratio rises, the temperature drop also rises.

关 键 词：双管式气波制冷机 射流 控制管 膨胀比 

分 类 号：TQ021.1[化学工程]