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Effects of non-inertial acceleration on the onset of convection in a second-order fluid-saturated porous medium

机译:非惯性加速度对二阶流体饱和多孔介质中对流开始的影响

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摘要

The paper deals with the linear stability analysis of a rotating second-order fluid-saturated porous medium. The eigenvalue is computed for free-free, isothermal boundary combinations by considering the Rivlin-Ericksen equation. The analysis predicts that the preferred mode of oscillatory motion is possible Only for higher rates of rotation and higher values of viscoelastic parameter. The effect of rotation is to Suppress the viscoelasticity of the fluid. The proposed model is best suited for viscoelastic fluids like DNA in Aqueous solution having viscosity similar to that of water (see Paul Kolodner, Int. Conf. On Non-New- Tonian Fluids, USA, 1998)
机译:本文涉及旋转二阶饱和流体多孔介质的线性稳定性分析。通过考虑Rivlin-Ericksen方程来计算自由,等温边界组合的特征值。分析预测,仅对于更高的旋转速率和更高的粘弹性参数值,振荡运动的优选模式才可能。旋转的作用是抑制流体的粘弹性。所提出的模型最适合粘度类似于水的水溶液中的粘弹性流体,例如DNA,(参见Paul Kolodner,国际非新托尼亚流体国际会议,1998年,Paul Kolodner,)。

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