Density-wave fronts on the brink of wet granular condensation

Abstract Density-wave fronts in a vibrofluidized wet granular layer undergoing a gas-liquid-like transition are investigated experimentally. The threshold of the instability is governed by the amplitude of the vertical vibrations. Fronts, which are curved into a spiral shape, propagate coherently al...

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Auteurs principaux:	Andreas Zippelius, Kai Huang
Format:	article
Langue:	EN
Publié:	Nature Portfolio 2017
Sujets:	Medicine R Science Q
Accès en ligne:	https://doaj.org/article/2c98c6ec48384edca30a1e9c95aaf7e5
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spelling	oai:doaj.org-article:2c98c6ec48384edca30a1e9c95aaf7e52021-12-02T16:06:05ZDensity-wave fronts on the brink of wet granular condensation10.1038/s41598-017-03844-02045-2322https://doaj.org/article/2c98c6ec48384edca30a1e9c95aaf7e52017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03844-0https://doaj.org/toc/2045-2322Abstract Density-wave fronts in a vibrofluidized wet granular layer undergoing a gas-liquid-like transition are investigated experimentally. The threshold of the instability is governed by the amplitude of the vertical vibrations. Fronts, which are curved into a spiral shape, propagate coherently along the circular rim of the container with leading edges. They are stable beyond a critical distance from the container center. Based on an analysis of the emerging time and length scales, we propose a model for the pattern formation by considering the competition between the time scale for the condensation of wet granular particles from a gas-like state and that of the energy injection resisting this process.Andreas ZippeliusKai HuangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Andreas Zippelius Kai Huang Density-wave fronts on the brink of wet granular condensation
description	Abstract Density-wave fronts in a vibrofluidized wet granular layer undergoing a gas-liquid-like transition are investigated experimentally. The threshold of the instability is governed by the amplitude of the vertical vibrations. Fronts, which are curved into a spiral shape, propagate coherently along the circular rim of the container with leading edges. They are stable beyond a critical distance from the container center. Based on an analysis of the emerging time and length scales, we propose a model for the pattern formation by considering the competition between the time scale for the condensation of wet granular particles from a gas-like state and that of the energy injection resisting this process.
format	article
author	Andreas Zippelius Kai Huang
author_facet	Andreas Zippelius Kai Huang
author_sort	Andreas Zippelius
title	Density-wave fronts on the brink of wet granular condensation
title_short	Density-wave fronts on the brink of wet granular condensation
title_full	Density-wave fronts on the brink of wet granular condensation
title_fullStr	Density-wave fronts on the brink of wet granular condensation
title_full_unstemmed	Density-wave fronts on the brink of wet granular condensation
title_sort	density-wave fronts on the brink of wet granular condensation
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/2c98c6ec48384edca30a1e9c95aaf7e5
work_keys_str_mv	AT andreaszippelius densitywavefrontsonthebrinkofwetgranularcondensation AT kaihuang densitywavefrontsonthebrinkofwetgranularcondensation
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Density-wave fronts on the brink of wet granular condensation

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