Study of Edge Effect to Stop Liquid Spillage for Microgravity Application

The ability of a micro-groove to prevent the spreading of HFE-7100 fluid (C 4 F 9 OCH 3 ) having low surface tension (γ = 13.6 mN/m) on a surface is studied. In this study, micro-grooves were made around square openings of a plate made of either polycarbonate or 316 stainless steel. To verify effect...

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Veröffentlicht in:	Microgravity science and technology 2013-02, Vol.25 (1), p.27-33
Hauptverfasser:	Grishaev, Viktor, Amirfazli, A., Chikov, Sergey, Lyulin, Yuriy, Kabov, Oleg
Format:	Artikel
Sprache:	eng
Schlagworte:	Aerospace Technology and Astronautics Austenitic stainless steels Classical and Continuum Physics Edge effect Engineering Fluid dynamics International Space Station Liquids Microgravity applications Original Article Plugs Space Exploration and Astronautics Space Sciences (including Extraterrestrial Physics Spreading Spreads Surface tension
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Zusammenfassung:	The ability of a micro-groove to prevent the spreading of HFE-7100 fluid (C 4 F 9 OCH 3 ) having low surface tension (γ = 13.6 mN/m) on a surface is studied. In this study, micro-grooves were made around square openings of a plate made of either polycarbonate or 316 stainless steel. To verify effectiveness of micro-grooves to stop the spread of HFE-7100, experiments were done under non-saturated and saturated conditions. Under non-saturated conditions the micro-grooves on both materials confined the liquid up to apparent angle of 55 ± 5° due to the edge effect. Saturated gas-vapor mixture with vapor mass fraction of w v = 88% and w v = 97% did not significantly influence the confinement of the liquid by the micro-groove. This result is promising for application of micro-grooved plates in CIMEX experiment planned for ISS.
ISSN:	0938-0108 1875-0494
DOI:	10.1007/s12217-012-9325-6