The draining of capillary liquids from containers with interior corners aboard the ISS

Abstract In this work, we analyze liquid drains from containers in effective zero-g conditions aboard the International Space Station (ISS). The efficient draining of capillary fluids from conduits, containers, and media is critical in particular to high-value liquid samples such as minuscule bioflu...

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Autores principales:	Joshua McCraney, Mark Weislogel, Paul Steen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Biotechnology TP248.13-248.65 Physiology QP1-981
Acceso en línea:	https://doaj.org/article/555c8e45c67044c2aaa70fc10c67bebe
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spelling	oai:doaj.org-article:555c8e45c67044c2aaa70fc10c67bebe2021-11-14T12:29:30ZThe draining of capillary liquids from containers with interior corners aboard the ISS10.1038/s41526-021-00173-52373-8065https://doaj.org/article/555c8e45c67044c2aaa70fc10c67bebe2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41526-021-00173-5https://doaj.org/toc/2373-8065Abstract In this work, we analyze liquid drains from containers in effective zero-g conditions aboard the International Space Station (ISS). The efficient draining of capillary fluids from conduits, containers, and media is critical in particular to high-value liquid samples such as minuscule biofluidics processing on earth and enormous cryogenic fuels management aboard spacecraft. The amount and rate of liquid drained can be of key concern. In the absence of strong gravitational effects, system geometry, and liquid wetting dominate capillary fluidic behavior. During the years 2010–2015, NASA conducted a series of handheld experiments aboard the ISS to observe “large” length scale capillary fluidic phenomena in a variety of irregular containers with interior corners. In this work, we focus on particular single exit port draining flows from such containers and digitize hours of archived NASA video records to quantify transient interface profiles and volumetric flow rates. These data are immediately useful for theoretical and numerical model benchmarks. We demonstrate this by making comparisons to lubrication models for slender flows in simplified geometries which show variable agreement with the data, in part validating certain geometry-dependent dynamical interface curvature boundary conditions while invalidating others. We further compare the data for the draining of complex vane networks and identify the limits of the current theory. All analyzed data is made available to the public as MATLAB files, as detailed within.Joshua McCraneyMark WeislogelPaul SteenNature PortfolioarticleBiotechnologyTP248.13-248.65PhysiologyQP1-981ENnpj Microgravity, Vol 7, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biotechnology TP248.13-248.65 Physiology QP1-981
spellingShingle	Biotechnology TP248.13-248.65 Physiology QP1-981 Joshua McCraney Mark Weislogel Paul Steen The draining of capillary liquids from containers with interior corners aboard the ISS
description	Abstract In this work, we analyze liquid drains from containers in effective zero-g conditions aboard the International Space Station (ISS). The efficient draining of capillary fluids from conduits, containers, and media is critical in particular to high-value liquid samples such as minuscule biofluidics processing on earth and enormous cryogenic fuels management aboard spacecraft. The amount and rate of liquid drained can be of key concern. In the absence of strong gravitational effects, system geometry, and liquid wetting dominate capillary fluidic behavior. During the years 2010–2015, NASA conducted a series of handheld experiments aboard the ISS to observe “large” length scale capillary fluidic phenomena in a variety of irregular containers with interior corners. In this work, we focus on particular single exit port draining flows from such containers and digitize hours of archived NASA video records to quantify transient interface profiles and volumetric flow rates. These data are immediately useful for theoretical and numerical model benchmarks. We demonstrate this by making comparisons to lubrication models for slender flows in simplified geometries which show variable agreement with the data, in part validating certain geometry-dependent dynamical interface curvature boundary conditions while invalidating others. We further compare the data for the draining of complex vane networks and identify the limits of the current theory. All analyzed data is made available to the public as MATLAB files, as detailed within.
format	article
author	Joshua McCraney Mark Weislogel Paul Steen
author_facet	Joshua McCraney Mark Weislogel Paul Steen
author_sort	Joshua McCraney
title	The draining of capillary liquids from containers with interior corners aboard the ISS
title_short	The draining of capillary liquids from containers with interior corners aboard the ISS
title_full	The draining of capillary liquids from containers with interior corners aboard the ISS
title_fullStr	The draining of capillary liquids from containers with interior corners aboard the ISS
title_full_unstemmed	The draining of capillary liquids from containers with interior corners aboard the ISS
title_sort	draining of capillary liquids from containers with interior corners aboard the iss
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/555c8e45c67044c2aaa70fc10c67bebe
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The draining of capillary liquids from containers with interior corners aboard the ISS

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