【摘要】 总结了高频微型脉冲管制冷机蓄冷器交变流动阻力特性的研究现状。针对高频脉冲管制冷机设计过程中引用不同的流动阻力系数使得流动压力降结果相差很大的实际情况,系统总结了已有的研究成果,明确了不同经验公式和图表的适用范围,有利于提高高频脉冲管制冷机设计的可靠性。更多还原

【Abstract】 The status and the progress of researches on flow characteristics of the regenerator in high frequency pulse tube refrigerator are described. The correlation equations and charts of the friction factor in some previous papers are discussed. The experimental condition and application range of these equations and charts are pointed out. It explains the reason why these is a great divergence in predicting the pressure drop in the oscillating flow regenerator when different equations and charts are cited in the optimum design of pulse tube refrigerators.更多还原