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magnetic field-dependent inductance properties based on magnetorheological elastomer

Journal of Central South University 2022年第4期29卷 1075-1084页

作者： JU Ben-xiang WANG Xiao-long College of Mechanical Engineering Chongqing University of TechnologyChongqing 400054China College of Mechanical Engineering North University of ChinaTaiyuan 030051China

Magnetorheological(MR)materials are a class of smart material,whose the mechanical/rheological state can be controlled under a magnetic *** materials are typically fluids,gels,or *** this study,anisotropic and isotropic magneto-rheological elastomer(MRE)samples were fabricated using a silicone rubber matrix with carbonyl iron particles as filler *** magnetic field-dependent inductance properties of these samples were studied using inductors specially designed for the *** effect of the filler particle content,fabrication conditions,and inductance properties were characterized using a self-built system in both constant and transient magnetic *** factors show a significant effect on the inductance properties of the MRE inductor under an applied magnetic *** anisotropic MRE inductor was more sensitive than the inductor based on an isotropic *** to the presence of a constant magnetic field,the inductance value of the MRE inductor decreased with an increase in the external magnetic *** attempt in elucidation of the mechanism is reported *** study may enable the MRE to be widely used in practical applications such as monitoring magnetic field or detecting the filler particle content inside MR materials.

关键词： magnetorheological elastomer magnetorheological elastomer(MRE)inductor inductance constant magnetic field transient magnetic field

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MHD Free Convective Flow of Water near 4℃ past a Vertical Moving Plate with constant Suction

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Applied Mathematics 2013年第1期4卷 52-57页

作者： Michalis Xenos Stelios Dimas Andreas Raptis Department of Mathematics University of IoanninaIoanninaGreece Instituto de Matematica Estatistica e Computacao CientificaUniversidade Estadual de CampinasCampinasBrasil

The aim of this work is the study of the magnetohydrodynamic (MHD) unsteady free convective flow of water near 4℃ past an infinitely vertical plate moving with constant velocity. The influence of constant uniform suction was also considered. The partial differential equations (PDEs) and their initial and boundary conditions, describing the problem under consideration, are dimensionalized and the numerical solution is obtained by using the finite volume discretization methodology which is suitable for Fluid Mechanics applications. The numerical results for the velocity and temperature fields are shown in figures for different dimensionless parameters entering in the problem under consideration, such as the magnetic parameter, M and the Grashof number, Gr. This study predicts the effects of a constant magnetic field and uniform suction on the free convective flow of water near 4℃, when the water is electrically conductive. Analysis of the results showed that the velocity and temperature profiles are noticeably influenced by these parameters.

关键词： Free Convection Water near 4℃ constant magnetic field Finite Volume Method

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