On a Couple-Stress Rivlin-Ericksen Ferromagnetic Fluid Heated from Below with Varying Gravity, Rotation, Magnetic Field and Suspended Particles Flowing Through a Porous Medium

Q3 Chemical Engineering
Rahul, Naveen Sharma
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引用次数: 0

Abstract

Abstract The thermal instability of a couple-stress Rivlin-Ericksen ferromagnetic fluid with varying gravity field, suspended particles, rotation and magnetic field flowing through a porous medium is investigated. The dispersion relation has been developed and solved analytically using the normal mode approach and linear stability theory. The effect of suspended particles, rotation, couple stress, permeability and magnetic field on the fluid layer has been investigated. For stationary conventions, it is found that suspended particles always have a destabilizing effect for λ>0 and a stabilizing effect for λ<0 and couple-stress, magnetic field and permeability of the medium have a stabilizing effect on the thermal instability under certain conditions. In the absence of the rotation couple-stress has a stabilizing effect if λ >0 and a destabilizing effect if λ<0. Rotation has a stabilizing effect if λ >0 and a destabilizing effect if λ<0. In the absence of rotation permeability has a stabilizing effect if λ<0 and a destabilizing effect if λ>0. Magnetisation always has a stabilizing effect (λ>0 or λ<0).
随重力、旋转、磁场及悬浮粒子变化而从下加热的耦合应力Rivlin-Ericksen铁磁流体
研究了具有不同重力场、悬浮粒子、旋转和磁场的耦合应力Rivlin-Ericksen铁磁流体在多孔介质中的热不稳定性。利用正模方法和线性稳定性理论建立了色散关系,并对其进行了解析求解。研究了悬浮颗粒、旋转、耦合应力、渗透率和磁场对流体层的影响。对于定常约定,发现悬浮粒子在λ>0时具有不稳定效应,在λ0时具有稳定效应,在λ0时具有不稳定效应,在λ0时具有不稳定效应。磁化总是具有稳定效应(λ>0或λ<0)。
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来源期刊
International Journal of Applied Mechanics and Engineering
International Journal of Applied Mechanics and Engineering Engineering-Civil and Structural Engineering
CiteScore
1.50
自引率
0.00%
发文量
45
审稿时长
35 weeks
期刊介绍: INTERNATIONAL JOURNAL OF APPLIED MECHANICS AND ENGINEERING is an archival journal which aims to publish high quality original papers. These should encompass the best fundamental and applied science with an emphasis on their application to the highest engineering practice. The scope includes all aspects of science and engineering which have relevance to: biomechanics, elasticity, plasticity, vibrations, mechanics of structures, mechatronics, plates & shells, magnetohydrodynamics, rheology, thermodynamics, tribology, fluid dynamics.
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