2024-03-28T20:54:44Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/750392022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139部分的な濡れ性変化が微小重力下で形成する液体プラグ長さに及ぼす影響Effect of local wettability change on liquid plug length in microgravity吉田, 仁熊谷, 剛彦井口, 学MicrogravityLiquid PlugLiquid BridgeWettabilityBambooMicro MachineSurfaceInterfaceLiquid plugs are generated in a partially filled horizontal circular pipe during the period from normal gravity to microgravity. If the liquid plugs are solidified, the structure of the pipe will be like a bamboo having low weight and high strength. The structure however is uniquly determined provided that the size of the pipe and the physical properties and the volume of the liquid are given. In this study the possibility of changing the structure was investigated by varying the wettability of the inner wall of the pipe. The wettability of the inner wall was locally varied by coating repellent on the wall. It was possible to make liquid plugs of different structures by this method.日本実験力学会Journal Articleapplication/pdfhttp://hdl.handle.net/2115/75039https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/75039/1/J.%20JSEM%204.115.pdf1346-4930AA10824164実験力学421151192004-06-25jpninfo:doi/10.11395/jjsem.2001.4.115publisher