在毛细滞后阻力方面,改进了所建立的高功率脉动热管的模型,进一步研究了脉动热管的流动和传热特性.根据控制体进出口液体容积流率的变化和流型的环状流特点,提出了确定毛细滞后阻力的新方法,关联了脉动热管的充液率、传递的功率大小、流速等参数之间的耦合关系,从而进一步说明了显热和潜热贡献的转换关系和传热特性.结果表明,工质的流速主要受毛细管管径、加热段的热流密度、传递的功率大小等影响较大,受毛细管长度的影响较小;总传热量中显热传热量仍占大部分.
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