Bag-breakup fragmentation as the dominant mechanism of sea-spray production in high winds

Abstract Showing the record strengths and growth-rates, recent hurricanes have highlighted needs for improving forecasts of tropical cyclone intensities most sensitive to models of the air-sea interaction. Especially challenging is the nature of sea-spray supposed to strongly affecting the momentum-...

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Autores principales:	Yu. Troitskaya, A. Kandaurov, O. Ermakova, D. Kozlov, D. Sergeev, S. Zilitinkevich
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1455bb00c92b42eab8bb29cc30b704e9
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spelling	oai:doaj.org-article:1455bb00c92b42eab8bb29cc30b704e92021-12-02T16:06:34ZBag-breakup fragmentation as the dominant mechanism of sea-spray production in high winds10.1038/s41598-017-01673-92045-2322https://doaj.org/article/1455bb00c92b42eab8bb29cc30b704e92017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01673-9https://doaj.org/toc/2045-2322Abstract Showing the record strengths and growth-rates, recent hurricanes have highlighted needs for improving forecasts of tropical cyclone intensities most sensitive to models of the air-sea interaction. Especially challenging is the nature of sea-spray supposed to strongly affecting the momentum- and energy- air-sea fluxes at strong winds. Even the spray-generation mechanisms in extreme winds remained undetermined. Basing on high-speed video here we identify it as the bag-breakup mode of fragmentation of liquid in gaseous flows known in a different context. This regime is characterized by inflating and consequent bursting of the short-lived objects, bags, comprising sail-like water films surrounded by massive liquid rims then fragmented to giant droplets with sizes exceeding 500 micrometers. From first principles of statistical physics we develop statistical description of these phenomena and show that at extreme winds the bag-breakup is the dominant spray-production mechanism. These findings provide a new basis for understanding and modeling of the air-sea exchange processes at extreme winds.Yu. TroitskayaA. KandaurovO. ErmakovaD. KozlovD. SergeevS. ZilitinkevichNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-4 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yu. Troitskaya A. Kandaurov O. Ermakova D. Kozlov D. Sergeev S. Zilitinkevich Bag-breakup fragmentation as the dominant mechanism of sea-spray production in high winds
description	Abstract Showing the record strengths and growth-rates, recent hurricanes have highlighted needs for improving forecasts of tropical cyclone intensities most sensitive to models of the air-sea interaction. Especially challenging is the nature of sea-spray supposed to strongly affecting the momentum- and energy- air-sea fluxes at strong winds. Even the spray-generation mechanisms in extreme winds remained undetermined. Basing on high-speed video here we identify it as the bag-breakup mode of fragmentation of liquid in gaseous flows known in a different context. This regime is characterized by inflating and consequent bursting of the short-lived objects, bags, comprising sail-like water films surrounded by massive liquid rims then fragmented to giant droplets with sizes exceeding 500 micrometers. From first principles of statistical physics we develop statistical description of these phenomena and show that at extreme winds the bag-breakup is the dominant spray-production mechanism. These findings provide a new basis for understanding and modeling of the air-sea exchange processes at extreme winds.
format	article
author	Yu. Troitskaya A. Kandaurov O. Ermakova D. Kozlov D. Sergeev S. Zilitinkevich
author_facet	Yu. Troitskaya A. Kandaurov O. Ermakova D. Kozlov D. Sergeev S. Zilitinkevich
author_sort	Yu. Troitskaya
title	Bag-breakup fragmentation as the dominant mechanism of sea-spray production in high winds
title_short	Bag-breakup fragmentation as the dominant mechanism of sea-spray production in high winds
title_full	Bag-breakup fragmentation as the dominant mechanism of sea-spray production in high winds
title_fullStr	Bag-breakup fragmentation as the dominant mechanism of sea-spray production in high winds
title_full_unstemmed	Bag-breakup fragmentation as the dominant mechanism of sea-spray production in high winds
title_sort	bag-breakup fragmentation as the dominant mechanism of sea-spray production in high winds
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/1455bb00c92b42eab8bb29cc30b704e9
work_keys_str_mv	AT yutroitskaya bagbreakupfragmentationasthedominantmechanismofseasprayproductioninhighwinds AT akandaurov bagbreakupfragmentationasthedominantmechanismofseasprayproductioninhighwinds AT oermakova bagbreakupfragmentationasthedominantmechanismofseasprayproductioninhighwinds AT dkozlov bagbreakupfragmentationasthedominantmechanismofseasprayproductioninhighwinds AT dsergeev bagbreakupfragmentationasthedominantmechanismofseasprayproductioninhighwinds AT szilitinkevich bagbreakupfragmentationasthedominantmechanismofseasprayproductioninhighwinds
_version_	1718384948745863168

Bag-breakup fragmentation as the dominant mechanism of sea-spray production in high winds

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