Numerical simulation of droplet behavior on an inclined plate using the Moving Particle Semi-implicit method

This paper presents the numerical simulation methods used to reproduce droplet retention and sliding on an inclined surface by using the Moving Particle Semi-implicit (MPS) method. The MPS method is useful for simulating free surface flows with highly deformed gas–liquid interfaces, such as the beha...

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Autores principales:	Tsuyoshi HATTORI, Seiichi KOSHIZUKA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2019
Materias:	mps method droplet surface tension contact angle wettability droplet retention droplet sliding critical sliding angle Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/223823f5857c4806ab3042915d77226c
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spelling	oai:doaj.org-article:223823f5857c4806ab3042915d77226c2021-11-29T05:47:05ZNumerical simulation of droplet behavior on an inclined plate using the Moving Particle Semi-implicit method2187-974510.1299/mej.19-00204https://doaj.org/article/223823f5857c4806ab3042915d77226c2019-08-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/6/5/6_19-00204/_pdf/-char/enhttps://doaj.org/toc/2187-9745This paper presents the numerical simulation methods used to reproduce droplet retention and sliding on an inclined surface by using the Moving Particle Semi-implicit (MPS) method. The MPS method is useful for simulating free surface flows with highly deformed gas–liquid interfaces, such as the behavior of condensed water in an evaporator. However, the existing MPS method cannot correctly reproduce the behavior of a droplet retention and droplet sliding on an inclined surface. In the simulation of a droplet on a wall using the existing MPS method, the simulated droplet starts sliding as soon as the wall is inclined even slightly and falls down at a very high speed. In this study, the details of the forces acting from the wall to a droplet are considered, and the boundary condition models that contain the resistance forces acting on the contact line of a droplet are proposed. Droplet retention and droplet sliding on an inclined plate are successfully simulated by using the proposed models. Furthermore, the simulation results are compared with the experimental results reported in literature. The relationship between the droplet volume and critical sliding angle and that between the inclination angle of a slope and droplet sliding velocity are each compared using the experimental results and evaluated both qualitatively and quantitatively; they show good agreement with the experimental results.Tsuyoshi HATTORISeiichi KOSHIZUKAThe Japan Society of Mechanical Engineersarticlemps methoddropletsurface tensioncontact anglewettabilitydroplet retentiondroplet slidingcritical sliding angleMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 6, Iss 5, Pp 19-00204-19-00204 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	mps method droplet surface tension contact angle wettability droplet retention droplet sliding critical sliding angle Mechanical engineering and machinery TJ1-1570
spellingShingle	mps method droplet surface tension contact angle wettability droplet retention droplet sliding critical sliding angle Mechanical engineering and machinery TJ1-1570 Tsuyoshi HATTORI Seiichi KOSHIZUKA Numerical simulation of droplet behavior on an inclined plate using the Moving Particle Semi-implicit method
description	This paper presents the numerical simulation methods used to reproduce droplet retention and sliding on an inclined surface by using the Moving Particle Semi-implicit (MPS) method. The MPS method is useful for simulating free surface flows with highly deformed gas–liquid interfaces, such as the behavior of condensed water in an evaporator. However, the existing MPS method cannot correctly reproduce the behavior of a droplet retention and droplet sliding on an inclined surface. In the simulation of a droplet on a wall using the existing MPS method, the simulated droplet starts sliding as soon as the wall is inclined even slightly and falls down at a very high speed. In this study, the details of the forces acting from the wall to a droplet are considered, and the boundary condition models that contain the resistance forces acting on the contact line of a droplet are proposed. Droplet retention and droplet sliding on an inclined plate are successfully simulated by using the proposed models. Furthermore, the simulation results are compared with the experimental results reported in literature. The relationship between the droplet volume and critical sliding angle and that between the inclination angle of a slope and droplet sliding velocity are each compared using the experimental results and evaluated both qualitatively and quantitatively; they show good agreement with the experimental results.
format	article
author	Tsuyoshi HATTORI Seiichi KOSHIZUKA
author_facet	Tsuyoshi HATTORI Seiichi KOSHIZUKA
author_sort	Tsuyoshi HATTORI
title	Numerical simulation of droplet behavior on an inclined plate using the Moving Particle Semi-implicit method
title_short	Numerical simulation of droplet behavior on an inclined plate using the Moving Particle Semi-implicit method
title_full	Numerical simulation of droplet behavior on an inclined plate using the Moving Particle Semi-implicit method
title_fullStr	Numerical simulation of droplet behavior on an inclined plate using the Moving Particle Semi-implicit method
title_full_unstemmed	Numerical simulation of droplet behavior on an inclined plate using the Moving Particle Semi-implicit method
title_sort	numerical simulation of droplet behavior on an inclined plate using the moving particle semi-implicit method
publisher	The Japan Society of Mechanical Engineers
publishDate	2019
url	https://doaj.org/article/223823f5857c4806ab3042915d77226c
work_keys_str_mv	AT tsuyoshihattori numericalsimulationofdropletbehavioronaninclinedplateusingthemovingparticlesemiimplicitmethod AT seiichikoshizuka numericalsimulationofdropletbehavioronaninclinedplateusingthemovingparticlesemiimplicitmethod
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Numerical simulation of droplet behavior on an inclined plate using the Moving Particle Semi-implicit method

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