Time-dependent MHD Couette flow in a porous annulus

Basant K. Jha; Clement A. Apere

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Time-dependent MHD Couette flow in a porous annulus

机译：多孔环中随时间变化的MHD Couette流

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This study presents the solution for the MHD transient Couette flow in an annulus formed by two concentric porous cylinders of infinite length. The fluid flow is induced by either the impulsive or the accelerated movements of the outer cylinder. A uniform magnetic field is assumed to be applied perpendicular to the direction of flow. General solution of the governing equations is obtained using a combination of Laplace transform and the Riemann-sum approximation method of Laplace inversion. The expressions for the skin friction at the two walls are obtained in both cases. The variations of the velocity and the skin friction with respect to the Hartmann number and suction/injection parameter have been discussed. It is found out that suction accelerates the flow whereas injection retards the flow.

机译：这项研究提出了由两个无限长的同心多孔圆柱体形成的环中的MHD瞬态库埃特流的解决方案。流体流动是由外缸的脉冲运动或加速运动引起的。假定垂直于流动方向施加均匀的磁场。结合拉普拉斯变换和拉普拉斯反演的黎曼和近似方法，可以得到控制方程的一般解。在这两种情况下，都获得了两个壁处的皮肤摩擦表达式。讨论了速度和皮肤摩擦力相对于哈特曼数和吸力/喷射参数的变化。发现吸力加速了流动，而喷射则阻碍了流动。

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来源
《Communications in Nonlinear Science and Numerical Simulation》 |2013年第8期|1959-1969|共11页
作者
Basant K. Jha; Clement A. Apere;
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作者单位

Department of Mathematics, Ahmadu Bello University, Zaria, Nigeria;

Department of Mathematics, Ahmadu Bello University, Zaria, Nigeria;

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原文格式 PDF
正文语种 eng
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关键词
MHD; couette motion; concentric annuli; riemann-sum approximation;

机译：MHD;couette运动同心环黎曼和近似;

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1. Role of radial magnetic field on heat transfer in MHD Couette flow in an annulus with viscous and Joule dissipation [J] . B.K. Jha, H.M. Jibril, A.O. Emeka Thermophysics and Aeromechanics . 2018,第2期

机译：径向磁场对粘性和焦耳耗散的环空沟沟流动热传递的作用
2. Unsteady MHD two-phase Couette flow of fluid-particle suspension in an annulus [J] . Basant K. Jha, Clement A. Apere AIP Advances . 2011,第4期

机译：环空中流体颗粒悬浮液的非稳态MHD两相Couette流
3. Taylor-Couette Flow of an Oldroyd-B Fluid in an Annulus Subject to a Time-dependent Rotation [J] . M. Imran, Madeeha Tahir, M. A. Imran, American Journal of Applied Mathematics . 2015,第3a1期

机译：随时间变化的旋转环中Oldroyd-B流体的泰勒-库埃特流
4. MHD Couette Flow in Cylindrical Porous Annulus with Perfectly Conducting Walls [C] . Sian-Wun Guo, Jik Chang Leong International Conference on Engineering and Technologynnovation . 2013

机译：MHD Couette在圆柱形多孔环中流动，具有完美导电的墙壁
5. Three-dimensional time-dependent fluid flow simulations: Ordinary and magnetohydrodynamic (MHD) fluids. [D] . Sun, Ming-Tsung. 1991

机译：随时间变化的三维三维流体模拟：普通流体和磁流体动力学（MHD）流体。
6. Numerical Investigation of Entropy Generation in Unsteady MHD Generalized Couette Flow with Variable Electrical Conductivity [O] . T. Chinyoka, O. D. Makinde 2013

机译：电导率可变的非稳态MHD广义Couette流中熵产生的数值研究
7. Unsteady MHD two-phase Couette flow of fluid-particle suspension in an annulus [O] . Basant K. Jha, Clement A. Apere 2011

机译：环空中流体颗粒悬浮液的非稳态MHD两相Couette流

Time-dependent MHD Couette flow in a porous annulus

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