Lattice Boltzmann simulation of liquid falling on horizontal rectangular pillar arrays

Stator coils of automobiles in operation generate heat and are cooled by a coolant poured from above. Since the behavior characteristic of the coolant poured on the coils is not clarified yet due to its complexity, the three-dimensional two-phase flow simulation is conducted. In this study, as a ste...

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Autores principales:	Sugimoto Makoto, Miyazaki Tatsuya, Li Zelin, Kaneda Masayuki, Suga Kazuhiko
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/ac32ddf0653042b780386b9efe48aac5
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id	oai:doaj.org-article:ac32ddf0653042b780386b9efe48aac5
record_format	dspace
spelling	oai:doaj.org-article:ac32ddf0653042b780386b9efe48aac52021-11-12T11:44:34ZLattice Boltzmann simulation of liquid falling on horizontal rectangular pillar arrays2267-124210.1051/e3sconf/202132101014https://doaj.org/article/ac32ddf0653042b780386b9efe48aac52021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/97/e3sconf_icchmt2021_01014.pdfhttps://doaj.org/toc/2267-1242Stator coils of automobiles in operation generate heat and are cooled by a coolant poured from above. Since the behavior characteristic of the coolant poured on the coils is not clarified yet due to its complexity, the three-dimensional two-phase flow simulation is conducted. In this study, as a steppingstone to the simulation of the liquid falling on the actual coils, the coils are modelled with horizontal rectangular pillar arrays whose governing parameters can be easily changed. The two-phase flows are simulated using the lattice Boltzmann method and the phase-field model, and the effects of the governing parameters, such as the physical properties of the cooling liquid, the wettability, and the gap between the pillars, on the wetting area are investigated. The results show that the oil tends to spread across the pillars because of its high viscosity. Moreover, the liquid spreads quickly when the contact angle is small. In the case that the pillars are stacked, the wetting area of the inner pillars is larger than that of the exposed pillars.Sugimoto MakotoMiyazaki TatsuyaLi ZelinKaneda MasayukiSuga KazuhikoEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 321, p 01014 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Sugimoto Makoto Miyazaki Tatsuya Li Zelin Kaneda Masayuki Suga Kazuhiko Lattice Boltzmann simulation of liquid falling on horizontal rectangular pillar arrays
description	Stator coils of automobiles in operation generate heat and are cooled by a coolant poured from above. Since the behavior characteristic of the coolant poured on the coils is not clarified yet due to its complexity, the three-dimensional two-phase flow simulation is conducted. In this study, as a steppingstone to the simulation of the liquid falling on the actual coils, the coils are modelled with horizontal rectangular pillar arrays whose governing parameters can be easily changed. The two-phase flows are simulated using the lattice Boltzmann method and the phase-field model, and the effects of the governing parameters, such as the physical properties of the cooling liquid, the wettability, and the gap between the pillars, on the wetting area are investigated. The results show that the oil tends to spread across the pillars because of its high viscosity. Moreover, the liquid spreads quickly when the contact angle is small. In the case that the pillars are stacked, the wetting area of the inner pillars is larger than that of the exposed pillars.
format	article
author	Sugimoto Makoto Miyazaki Tatsuya Li Zelin Kaneda Masayuki Suga Kazuhiko
author_facet	Sugimoto Makoto Miyazaki Tatsuya Li Zelin Kaneda Masayuki Suga Kazuhiko
author_sort	Sugimoto Makoto
title	Lattice Boltzmann simulation of liquid falling on horizontal rectangular pillar arrays
title_short	Lattice Boltzmann simulation of liquid falling on horizontal rectangular pillar arrays
title_full	Lattice Boltzmann simulation of liquid falling on horizontal rectangular pillar arrays
title_fullStr	Lattice Boltzmann simulation of liquid falling on horizontal rectangular pillar arrays
title_full_unstemmed	Lattice Boltzmann simulation of liquid falling on horizontal rectangular pillar arrays
title_sort	lattice boltzmann simulation of liquid falling on horizontal rectangular pillar arrays
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/ac32ddf0653042b780386b9efe48aac5
work_keys_str_mv	AT sugimotomakoto latticeboltzmannsimulationofliquidfallingonhorizontalrectangularpillararrays AT miyazakitatsuya latticeboltzmannsimulationofliquidfallingonhorizontalrectangularpillararrays AT lizelin latticeboltzmannsimulationofliquidfallingonhorizontalrectangularpillararrays AT kanedamasayuki latticeboltzmannsimulationofliquidfallingonhorizontalrectangularpillararrays AT sugakazuhiko latticeboltzmannsimulationofliquidfallingonhorizontalrectangularpillararrays
_version_	1718430571980390400

Lattice Boltzmann simulation of liquid falling on horizontal rectangular pillar arrays

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