Visualization study on liquid-vapor phase displacement between wall and porous media in drainage process of two-phase loop
Visualization study on liquid-vapor phase displacement between wall and porous media in drainage process of two-phase loop
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DOI：
10.55900/prsmxfrw
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
J. Matsuda;Hiroshi Yokoyama;H. Yanada
中科院分区：
文献类型：
--
作者：
J. Matsuda;Hiroshi Yokoyama;H. Yanada
在这项研究中，观察了壁和多孔介质排水过程中的液-汽相位移，以了解和提高液-汽两相传热装置的热性能。由泵驱动的蒸汽从透明非加热壁中心的微孔注入饱和多孔介质中。根据毛细管数量，观察到毛细管和粘性指法的两个相位移模式。接触角越大，粘性指进液汽粘性比越高，三相接触线长度越长。
In this study, liquid-vapor phase displacement in the drainage process of a wall and porous media was observed to understand and enhance the thermal performance of liquid-vapor two-phase heat transfer devices. Vapor driven by a pump was injected into saturated porous media from a micro hole on the center of the transparent non-heated wall. Two phase displacement patterns of capillary and viscous fingering were observed, depending on capillary number. The three-phase contact line length was longer when there was a larger contact angle and a high viscous ratio of liquid and vapor on viscous fingering.