Sessile volatile drop evaporation under microgravity

Abstract The evaporation of sessile drops of various volatile and non-volatile liquids, and their internal flow patterns with or without instabilities have been the subject of many investigations. The current experiment is a preparatory one for a space experiment planned to be installed in the Europ...

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Autores principales:	Sanjeev Kumar, Marc Medale, Paolo Di Marco, David Brutin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Biotechnology TP248.13-248.65 Physiology QP1-981
Acceso en línea:	https://doaj.org/article/fa935da5c5954047997ccb51e2e0b2ce
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spelling	oai:doaj.org-article:fa935da5c5954047997ccb51e2e0b2ce2021-12-02T12:34:47ZSessile volatile drop evaporation under microgravity10.1038/s41526-020-00128-22373-8065https://doaj.org/article/fa935da5c5954047997ccb51e2e0b2ce2020-12-01T00:00:00Zhttps://doi.org/10.1038/s41526-020-00128-2https://doaj.org/toc/2373-8065Abstract The evaporation of sessile drops of various volatile and non-volatile liquids, and their internal flow patterns with or without instabilities have been the subject of many investigations. The current experiment is a preparatory one for a space experiment planned to be installed in the European Drawer Rack 2 (EDR-2) of the International Space Station (ISS), to investigate drop evaporation in weightlessness. In this work, we concentrate on preliminary experimental results for the evaporation of hydrofluoroether (HFE-7100) sessile drops in a sounding rocket that has been performed in the frame of the MASER-14 Sounding Rocket Campaign, providing the science team with the opportunity to test the module and perform the experiment in microgravity for six consecutive minutes. The focus is on the evaporation rate, experimentally observed thermo-capillary instabilities, and the de-pinning process. The experimental results provide evidence for the relationship between thermo-capillary instabilities and the measured critical height of the sessile drop interface. There is also evidence of the effects of microgravity and Earth conditions on the sessile drop evaporation rate, and the shape of the sessile drop interface and its influence on the de-pinning process.Sanjeev KumarMarc MedalePaolo Di MarcoDavid BrutinNature PortfolioarticleBiotechnologyTP248.13-248.65PhysiologyQP1-981ENnpj Microgravity, Vol 6, Iss 1, Pp 1-8 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biotechnology TP248.13-248.65 Physiology QP1-981
spellingShingle	Biotechnology TP248.13-248.65 Physiology QP1-981 Sanjeev Kumar Marc Medale Paolo Di Marco David Brutin Sessile volatile drop evaporation under microgravity
description	Abstract The evaporation of sessile drops of various volatile and non-volatile liquids, and their internal flow patterns with or without instabilities have been the subject of many investigations. The current experiment is a preparatory one for a space experiment planned to be installed in the European Drawer Rack 2 (EDR-2) of the International Space Station (ISS), to investigate drop evaporation in weightlessness. In this work, we concentrate on preliminary experimental results for the evaporation of hydrofluoroether (HFE-7100) sessile drops in a sounding rocket that has been performed in the frame of the MASER-14 Sounding Rocket Campaign, providing the science team with the opportunity to test the module and perform the experiment in microgravity for six consecutive minutes. The focus is on the evaporation rate, experimentally observed thermo-capillary instabilities, and the de-pinning process. The experimental results provide evidence for the relationship between thermo-capillary instabilities and the measured critical height of the sessile drop interface. There is also evidence of the effects of microgravity and Earth conditions on the sessile drop evaporation rate, and the shape of the sessile drop interface and its influence on the de-pinning process.
format	article
author	Sanjeev Kumar Marc Medale Paolo Di Marco David Brutin
author_facet	Sanjeev Kumar Marc Medale Paolo Di Marco David Brutin
author_sort	Sanjeev Kumar
title	Sessile volatile drop evaporation under microgravity
title_short	Sessile volatile drop evaporation under microgravity
title_full	Sessile volatile drop evaporation under microgravity
title_fullStr	Sessile volatile drop evaporation under microgravity
title_full_unstemmed	Sessile volatile drop evaporation under microgravity
title_sort	sessile volatile drop evaporation under microgravity
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/fa935da5c5954047997ccb51e2e0b2ce
work_keys_str_mv	AT sanjeevkumar sessilevolatiledropevaporationundermicrogravity AT marcmedale sessilevolatiledropevaporationundermicrogravity AT paolodimarco sessilevolatiledropevaporationundermicrogravity AT davidbrutin sessilevolatiledropevaporationundermicrogravity
_version_	1718393837675610112

Sessile volatile drop evaporation under microgravity

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