直流是脉冲管制冷机中重要的机理性问题.本文介绍了脉冲管制冷机第三种直流效应的最新理论研究结果,深入分析了第三种直流效应的产生机理和影响因素.结合制冷机系统的流动和热力学非对称性,通过实验研究了脉冲管制冷机第三种直流效应对几何结构、冷头温度、频率、压力等参数的敏感性.
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