高频脉冲管制冷机流动特性实验分析

工程热物理学报 , 2005, 26(3): 365-368.

1.中科院理化所,北京,100080;中科院研究生院,北京,100039

2.中科院理化所,北京,100080;中科院研究生院,北京,100039

3.中科院理化所,北京,100080

4.中科院理化所,北京,100080

5.中科院理化所,北京,100080

基金项目: 国家自然科学基金(50206025)

EXPERIMENTAL MEASUREMENTS OF FLOW CHARACTERISTICS IN A HIGH FREQUENCY PULSE TUBE COOLER

系统的测量了不同运行条件下,高频脉冲管制冷机蓄冷器冷端压力波幅值、速度波幅值以及它们之间相位差的变化规律.结合焓流理论,解释了小孔开度、充气压力、压比和运行频率,在高频条件下对制冷性能的影响规律.所得结果定性解释了制冷机中相应的实验现象,对于高频脉冲管制冷机的机理理解和实验研究有重要指导意义.

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