本文对紫铜板式脉动热管表面进行超亲水及亲水处理.通过高速摄像观测液弹脉动时界面三相线的演化过程,研究脉动热管界面的运动规律.实验结果表明液弹脉动过程中,由于液膜沉积的作用液弹尾部脉动热管壁面被一层液膜覆盖.沉积液膜的长度与液弹脉动速度和脉动热管表面润湿性能有关.随着表面润湿性能的提高,相同的加热功率下液膜沉积的长度增加.超亲水和亲水脉动热管液弹脉动的振幅和速度大于普通紫铜脉动热管.脉动热管的传热性能的大小取决于液弹脉动的剧烈程度.亲水表面脉动热管液弹脉动的振幅和速度增加,传热性能高于普通紫铜脉动热管.
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