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Magnetohydrodynamics最新文献

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Analyzing a modulated electromagnetic m = 2 forcing and its capability to synchronize the large scale circulation in a Rayleigh-Bénard cell of aspect ratio Γ = 1 长宽比Γ=1的Rayleigh-Bénard细胞中调制电磁m=2强迫及其同步大尺度环流的能力分析
IF 0.7 4区 工程技术
Magnetohydrodynamics Pub Date : 2022-05-01 DOI: 10.22364/mhd.58.1-2.20
{"title":"Analyzing a modulated electromagnetic m = 2 forcing and its capability to synchronize the large scale circulation in a Rayleigh-Bénard cell of aspect ratio Γ = 1","authors":"","doi":"10.22364/mhd.58.1-2.20","DOIUrl":"https://doi.org/10.22364/mhd.58.1-2.20","url":null,"abstract":"The synchronization of the helicity of an instability with azimuthal wavenumber m = 1 by a weak tidal m = 2 perturbation might play a key role in explaining the phase-stable Schwabe cycle of the solar dynamo [1]. To elucidate this type of interaction, we study a thermally driven Rayleigh-Bénard convection under a tide-like influence. We focus first on the generation of the m = 2 mode flow by electromagnetic forcing and then on its low-frequency modulation. In the last section, we present preliminary results on the interaction of this perturbation with the sloshing/torsional motion of the Large Scale Circulation (LSC) of a Rayleigh-Bénard convection flow. While the main focus of the paper is on the numerical side, some comparisons with experimental results are also made. Figs 9, Refs 8.","PeriodicalId":18136,"journal":{"name":"Magnetohydrodynamics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43531859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Flow reconstruction in a Rayleigh-Bénard convection cell with an aspect ratio 0.5 by contactless inductive flow tomography 长宽比为0.5的Rayleigh-Bénard对流池中的非接触感应流层析成像流动重建
IF 0.7 4区 工程技术
Magnetohydrodynamics Pub Date : 2022-05-01 DOI: 10.22364/mhd.58.1-2.8
{"title":"Flow reconstruction in a Rayleigh-Bénard convection cell with an aspect ratio 0.5 by contactless inductive flow tomography","authors":"","doi":"10.22364/mhd.58.1-2.8","DOIUrl":"https://doi.org/10.22364/mhd.58.1-2.8","url":null,"abstract":"The time dependent behaviour of the large-scale circulation in a Rayleigh-Bénard convection cell exhibits a rich set of different three-dimensional flow features like rotations or torsional modes. In this paper, the applicability of contactless inductive flow tomography to visualise these flow features in a cylindrical cell filled with GaInSn is investigated numerically. The simulated flow in the cylinder with a diameter of 320 mm and a height of 640 mm serves as a basis to investigate the quality of the reconstructed velocity field by contactless inductive flow tomography. Figs 5, Refs 9.","PeriodicalId":18136,"journal":{"name":"Magnetohydrodynamics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43462875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Transient behaviour of electrovortex flow in a cylindrical container 圆柱形容器内电涡旋流动的瞬态特性
IF 0.7 4区 工程技术
Magnetohydrodynamics Pub Date : 2022-01-01 DOI: 10.22364/mhd.57.4.2
Ke Liu, F. Stefani, N. Weber, T. Weier, Ben-Wen Li
{"title":"Transient behaviour of electrovortex flow in a cylindrical container","authors":"Ke Liu, F. Stefani, N. Weber, T. Weier, Ben-Wen Li","doi":"10.22364/mhd.57.4.2","DOIUrl":"https://doi.org/10.22364/mhd.57.4.2","url":null,"abstract":"The mechanical behaviour of the oxide film that develops at the metal-air interface of molten A356 aluminum alloy is investigated in relation to the oxidation level. Based on two previous papers - the first one focusing on the chemical aspects of the oxidation process at the liquid surface of molten aluminum, the second one focusing on its mechanical characterization, the present paper aims at reconciling these two approaches usually considered separately in the literature and proposes a stand-alone mechano-chemical model. The oxidation process is first characterized from thermogravimetric analyses together with scanning electron microscopy imaging. Then the mechanical properties of the oxide layer are determined at a given oxidation level, making use of a new annular MHD surface viscometer placed inside a chemical reactor. The kinetic study delivers a better understanding of the oxidation process involved at the surface of the A356 alloy and leads to the development of a revised version of the Deal−Grove model. In addition, the mechanical study reveals the highly viscous and shear-thinning behaviours of the oxide layer. Figs 3, Refs 14.","PeriodicalId":18136,"journal":{"name":"Magnetohydrodynamics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41819458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Performance analysis of an inert gas plasma Faraday-type MHD generator by coupling thermodynamic equilibrium ionization model with UDF functions of Fluent 利用热力学平衡电离模型与Fluent的UDF函数耦合分析惰性气体等离子体法拉第型MHD发电机的性能
IF 0.7 4区 工程技术
Magnetohydrodynamics Pub Date : 2022-01-01 DOI: 10.22364/mhd.57.4.8
{"title":"Performance analysis of an inert gas plasma Faraday-type MHD generator by coupling thermodynamic equilibrium ionization model with UDF functions of Fluent","authors":"","doi":"10.22364/mhd.57.4.8","DOIUrl":"https://doi.org/10.22364/mhd.57.4.8","url":null,"abstract":"","PeriodicalId":18136,"journal":{"name":"Magnetohydrodynamics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45117413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Numerical analysis of angular effect on liquid silicon flow in the MHD Graëtz heat exchanger 角度对MHD Graëtz换热器中硅液流动影响的数值分析
IF 0.7 4区 工程技术
Magnetohydrodynamics Pub Date : 2022-01-01 DOI: 10.22364/mhd.57.4.7
{"title":"Numerical analysis of angular effect on liquid silicon flow in the MHD Graëtz heat exchanger","authors":"","doi":"10.22364/mhd.57.4.7","DOIUrl":"https://doi.org/10.22364/mhd.57.4.7","url":null,"abstract":"","PeriodicalId":18136,"journal":{"name":"Magnetohydrodynamics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49105522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of longitudinal magnetic field on the droplet evolution during electroslag remelting 纵向磁场对电渣重熔熔滴演化的影响
IF 0.7 4区 工程技术
Magnetohydrodynamics Pub Date : 2022-01-01 DOI: 10.22364/mhd.57.4.10
{"title":"Effect of longitudinal magnetic field on the droplet evolution during electroslag remelting","authors":"","doi":"10.22364/mhd.57.4.10","DOIUrl":"https://doi.org/10.22364/mhd.57.4.10","url":null,"abstract":"","PeriodicalId":18136,"journal":{"name":"Magnetohydrodynamics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48484492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
MHD Casson fluid flow under the temperature and concentration gradients MHD卡森流体在温度和浓度梯度下的流动
IF 0.7 4区 工程技术
Magnetohydrodynamics Pub Date : 2021-10-01 DOI: 10.22364/mhd.57.3.5
{"title":"MHD Casson fluid flow under the temperature and concentration gradients","authors":"","doi":"10.22364/mhd.57.3.5","DOIUrl":"https://doi.org/10.22364/mhd.57.3.5","url":null,"abstract":"","PeriodicalId":18136,"journal":{"name":"Magnetohydrodynamics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48956292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Three-dimensional model of double diffusive magnetohydrodynamic Newtonian fluid flow 双扩散磁流体力学牛顿流体流动的三维模型
IF 0.7 4区 工程技术
Magnetohydrodynamics Pub Date : 2021-10-01 DOI: 10.22364/mhd.57.3.6
{"title":"Three-dimensional model of double diffusive magnetohydrodynamic Newtonian fluid flow","authors":"","doi":"10.22364/mhd.57.3.6","DOIUrl":"https://doi.org/10.22364/mhd.57.3.6","url":null,"abstract":"","PeriodicalId":18136,"journal":{"name":"Magnetohydrodynamics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42881333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The impact of Newtonian heating on magnetic Casson nanofluid flow with variable consistency over a variable surface thickness 牛顿加热对可变表面厚度上具有可变稠度的磁性Casson纳米流体流动的影响
IF 0.7 4区 工程技术
Magnetohydrodynamics Pub Date : 2021-10-01 DOI: 10.22364/mhd.57.3.1
Nurzatulshima Kamaruddin, A. F. Ayub, Sharifah Kartini, Said Husain
{"title":"The impact of Newtonian heating on magnetic Casson nanofluid flow with variable consistency over a variable surface thickness","authors":"Nurzatulshima Kamaruddin, A. F. Ayub, Sharifah Kartini, Said Husain","doi":"10.22364/mhd.57.3.1","DOIUrl":"https://doi.org/10.22364/mhd.57.3.1","url":null,"abstract":"","PeriodicalId":18136,"journal":{"name":"Magnetohydrodynamics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43165152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Soret--Dufour impacts on inclined magnetic Casson fluid flow Soret—Dufour对倾斜磁卡森流体流动的影响
IF 0.7 4区 工程技术
Magnetohydrodynamics Pub Date : 2021-10-01 DOI: 10.22364/mhd.57.3.4
{"title":"Soret--Dufour impacts on inclined magnetic Casson fluid flow","authors":"","doi":"10.22364/mhd.57.3.4","DOIUrl":"https://doi.org/10.22364/mhd.57.3.4","url":null,"abstract":"","PeriodicalId":18136,"journal":{"name":"Magnetohydrodynamics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46531417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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