High energy dissipation rates from the impingement of free paper-thin sheets of liquids: A study of the coefficient of restitution of the collision

The micromixing time of impinging thin liquid sheets depends upon the energy dissipation rate, which is typically 104 to 106 W/kg. The energy dissipation rate in the impingement zone is a function of the coefficient of restitution (COR) of the collision. In this study the COR was investigated both t...

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Autor principal:	Robert J. Demyanovich
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Micromixing Energy dissipation rate Coefficient of restitution Impinging sheets Thin liquid sheets Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/b5239d9176294dc1b6bf037e2f9c8722
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id	oai:doaj.org-article:b5239d9176294dc1b6bf037e2f9c8722
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spelling	oai:doaj.org-article:b5239d9176294dc1b6bf037e2f9c87222021-11-26T04:39:16ZHigh energy dissipation rates from the impingement of free paper-thin sheets of liquids: A study of the coefficient of restitution of the collision2590-140010.1016/j.cesx.2021.100113https://doaj.org/article/b5239d9176294dc1b6bf037e2f9c87222021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2590140021000265https://doaj.org/toc/2590-1400The micromixing time of impinging thin liquid sheets depends upon the energy dissipation rate, which is typically 104 to 106 W/kg. The energy dissipation rate in the impingement zone is a function of the coefficient of restitution (COR) of the collision. In this study the COR was investigated both theoretically and experimentally. An analytical expression was developed that consists of a term that accounts for an inelastic collision of impinging sheets and a term that quantifies the “elasticity” imparted to the collision once the critical velocity for backflow is reached. The theoretical results were compared with experiments that determined the COR by measuring the velocity of single sheets and mixed sheets. Not only do the experimental results show a jump in the COR at the critical velocity, as predicted by theory, but calculated values of the COR from the analytical expression compare well with measured values.Robert J. DemyanovichElsevierarticleMicromixingEnergy dissipation rateCoefficient of restitutionImpinging sheetsThin liquid sheetsChemical engineeringTP155-156ENChemical Engineering Science: X, Vol 12, Iss , Pp 100113- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Micromixing Energy dissipation rate Coefficient of restitution Impinging sheets Thin liquid sheets Chemical engineering TP155-156
spellingShingle	Micromixing Energy dissipation rate Coefficient of restitution Impinging sheets Thin liquid sheets Chemical engineering TP155-156 Robert J. Demyanovich High energy dissipation rates from the impingement of free paper-thin sheets of liquids: A study of the coefficient of restitution of the collision
description	The micromixing time of impinging thin liquid sheets depends upon the energy dissipation rate, which is typically 104 to 106 W/kg. The energy dissipation rate in the impingement zone is a function of the coefficient of restitution (COR) of the collision. In this study the COR was investigated both theoretically and experimentally. An analytical expression was developed that consists of a term that accounts for an inelastic collision of impinging sheets and a term that quantifies the “elasticity” imparted to the collision once the critical velocity for backflow is reached. The theoretical results were compared with experiments that determined the COR by measuring the velocity of single sheets and mixed sheets. Not only do the experimental results show a jump in the COR at the critical velocity, as predicted by theory, but calculated values of the COR from the analytical expression compare well with measured values.
format	article
author	Robert J. Demyanovich
author_facet	Robert J. Demyanovich
author_sort	Robert J. Demyanovich
title	High energy dissipation rates from the impingement of free paper-thin sheets of liquids: A study of the coefficient of restitution of the collision
title_short	High energy dissipation rates from the impingement of free paper-thin sheets of liquids: A study of the coefficient of restitution of the collision
title_full	High energy dissipation rates from the impingement of free paper-thin sheets of liquids: A study of the coefficient of restitution of the collision
title_fullStr	High energy dissipation rates from the impingement of free paper-thin sheets of liquids: A study of the coefficient of restitution of the collision
title_full_unstemmed	High energy dissipation rates from the impingement of free paper-thin sheets of liquids: A study of the coefficient of restitution of the collision
title_sort	high energy dissipation rates from the impingement of free paper-thin sheets of liquids: a study of the coefficient of restitution of the collision
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/b5239d9176294dc1b6bf037e2f9c8722
work_keys_str_mv	AT robertjdemyanovich highenergydissipationratesfromtheimpingementoffreepaperthinsheetsofliquidsastudyofthecoefficientofrestitutionofthecollision
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High energy dissipation rates from the impingement of free paper-thin sheets of liquids: A study of the coefficient of restitution of the collision

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