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首页> 外文期刊>Applied Mechanics and Engineering >EFFECT OF ROTATION ON A SORET-DRIVEN THERMOHALINE CONVECTION IN DUSTY FERROFLUIDS SATURATING A POROUS MEDIUM
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EFFECT OF ROTATION ON A SORET-DRIVEN THERMOHALINE CONVECTION IN DUSTY FERROFLUIDS SATURATING A POROUS MEDIUM

机译：旋转对饱和多孔土壤中铁质硫酸盐对流热固盐对流的影响

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摘要

Soret driven thermoconvective instability in multicomponent fluids has wide applications in heat and mass transfer. This paper deals with the theoretical investigation of the effect of rotation on a Soret-driven ferrothermohaline convection heated and soluted from below subjected to a transverse uniform magnetic field in the presence of dust particles saturating a porous medium. Brinkmann model is used. An exact solution is obtained for the case of two free boundaries. Both stationary and oscillatory instabilities are investigated using the linear stability analysis and normal mode technique. The oscillatory modes are introduced due to the presence of dust particles, the stable solute gradient and rotation and the oscillatory modes are not allowed in their absence. For the case of stationary convection, the non-buoyancy magnetization parameter, the dust particle parameter and large values of permeability of the porous medium destabilize the system. The soret coefficient, rotation and the stable solute gradient stabilize the system. The results are presented graphically.
机译：多组分流体中Soret驱动的热对流不稳定性在传热和传质方面具有广泛的应用。本文研究了旋转对Soret驱动的铁盐热对流的影响的理论研究，该对流在受到均匀的粉尘饱和的情况下在横向均匀磁场的作用下从下方加热并溶化，并从下方溶化。使用Brinkmann模型。对于两个自由边界的情况，可以获得精确的解。使用线性稳定性分析和正态技术研究了平稳和振荡不稳定性。由于存在灰尘颗粒，引入了振荡模式，稳定的溶质梯度和旋转，并且在没有振荡模式的情况下不允许振荡模式。对于固定对流，非浮力磁化参数，尘埃颗粒参数和多孔介质的较大渗透率值会使系统不稳定。索特系数，旋转和稳定的溶质梯度使系统稳定。结果以图形方式显示。

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