Effect of Electromagnetic Frequency on the Flow Behavior in Mold during Bloom Casting

Considering solidification, a large eddy simulation (LES) model of two-phase flow was established to simulate the thermal–magnetic flow coupled fields inside a jumbo bloom. The magnetic field was calculated based on Maxwell’s equations, constitutive equations, and Ohm’s law. An enthalpy–porosity tec...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Xianglong Li, Shaoyan Hu, Deyong Wang, Tianpeng Qu, Qi Quan, Xingzhi Zhou
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	round bloom biased flow large eddy simulation enthalpy–porosity method MEMS Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/84983ec2261944b8bf0792b9350ae38a
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:84983ec2261944b8bf0792b9350ae38a
record_format	dspace
spelling	oai:doaj.org-article:84983ec2261944b8bf0792b9350ae38a2021-11-25T18:22:15ZEffect of Electromagnetic Frequency on the Flow Behavior in Mold during Bloom Casting10.3390/met111118282075-4701https://doaj.org/article/84983ec2261944b8bf0792b9350ae38a2021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1828https://doaj.org/toc/2075-4701Considering solidification, a large eddy simulation (LES) model of two-phase flow was established to simulate the thermal–magnetic flow coupled fields inside a jumbo bloom. The magnetic field was calculated based on Maxwell’s equations, constitutive equations, and Ohm’s law. An enthalpy–porosity technique was used to model the solidification of the steel. The movement of the free surface was described by the volume of fluid (VOF) approach. With the effect of electromagnetic stirring (MEMS), the vortices in the bloom tended to be strip-like; large vortices mostly appeared in the injection zone, while small ones were found near the surface of the bloom. It is newly found that even though the submerged entry nozzle (SEN) is asymmetrical about the bloom, a biased flow can also be found under the effect of MEMS. The reason for this phenomenon is because the magnetic force is asymmetrical and transient. A high frequency will reduce the period of biased flow; however, the frequency should not be too high because it could also intensify meniscus fluctuations and thus entrap slag droplets in the mold. The velocity near the solidification front can also be increased with a higher frequency.Xianglong LiShaoyan HuDeyong WangTianpeng QuQi QuanXingzhi ZhouMDPI AGarticleround bloombiased flowlarge eddy simulationenthalpy–porosity methodMEMSMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1828, p 1828 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	round bloom biased flow large eddy simulation enthalpy–porosity method MEMS Mining engineering. Metallurgy TN1-997
spellingShingle	round bloom biased flow large eddy simulation enthalpy–porosity method MEMS Mining engineering. Metallurgy TN1-997 Xianglong Li Shaoyan Hu Deyong Wang Tianpeng Qu Qi Quan Xingzhi Zhou Effect of Electromagnetic Frequency on the Flow Behavior in Mold during Bloom Casting
description	Considering solidification, a large eddy simulation (LES) model of two-phase flow was established to simulate the thermal–magnetic flow coupled fields inside a jumbo bloom. The magnetic field was calculated based on Maxwell’s equations, constitutive equations, and Ohm’s law. An enthalpy–porosity technique was used to model the solidification of the steel. The movement of the free surface was described by the volume of fluid (VOF) approach. With the effect of electromagnetic stirring (MEMS), the vortices in the bloom tended to be strip-like; large vortices mostly appeared in the injection zone, while small ones were found near the surface of the bloom. It is newly found that even though the submerged entry nozzle (SEN) is asymmetrical about the bloom, a biased flow can also be found under the effect of MEMS. The reason for this phenomenon is because the magnetic force is asymmetrical and transient. A high frequency will reduce the period of biased flow; however, the frequency should not be too high because it could also intensify meniscus fluctuations and thus entrap slag droplets in the mold. The velocity near the solidification front can also be increased with a higher frequency.
format	article
author	Xianglong Li Shaoyan Hu Deyong Wang Tianpeng Qu Qi Quan Xingzhi Zhou
author_facet	Xianglong Li Shaoyan Hu Deyong Wang Tianpeng Qu Qi Quan Xingzhi Zhou
author_sort	Xianglong Li
title	Effect of Electromagnetic Frequency on the Flow Behavior in Mold during Bloom Casting
title_short	Effect of Electromagnetic Frequency on the Flow Behavior in Mold during Bloom Casting
title_full	Effect of Electromagnetic Frequency on the Flow Behavior in Mold during Bloom Casting
title_fullStr	Effect of Electromagnetic Frequency on the Flow Behavior in Mold during Bloom Casting
title_full_unstemmed	Effect of Electromagnetic Frequency on the Flow Behavior in Mold during Bloom Casting
title_sort	effect of electromagnetic frequency on the flow behavior in mold during bloom casting
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/84983ec2261944b8bf0792b9350ae38a
work_keys_str_mv	AT xianglongli effectofelectromagneticfrequencyontheflowbehaviorinmoldduringbloomcasting AT shaoyanhu effectofelectromagneticfrequencyontheflowbehaviorinmoldduringbloomcasting AT deyongwang effectofelectromagneticfrequencyontheflowbehaviorinmoldduringbloomcasting AT tianpengqu effectofelectromagneticfrequencyontheflowbehaviorinmoldduringbloomcasting AT qiquan effectofelectromagneticfrequencyontheflowbehaviorinmoldduringbloomcasting AT xingzhizhou effectofelectromagneticfrequencyontheflowbehaviorinmoldduringbloomcasting
_version_	1718411269343543296

Effect of Electromagnetic Frequency on the Flow Behavior in Mold during Bloom Casting

Ejemplares similares