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Rotary Oscillations of a Permeable Sphere in an Incompressible Couple Stress Fluid

机译:不可渗透球的旋转振荡在不可压缩的耦合压力流体中

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In this paper, an attempt is made to study the flow generated by rotary oscillations of a permeable sphere in an infinite expanse of an incompressible couple stress fluid. The flow generated is solved under Stokesian assumption for velocity field in the form of modified Bessel functions. The couple acting on the sphere due to external flow as well as internal flow is calculated. The couple has contributions to both couple stress tensor and stress tensor. Contour for the flow at different couple stress parameters is drawn to analyze the flow. It is noted that, due to couple stresses, the particles near the surface of the sphere are thrown away with velocity more than the velocity of the surface of the sphere. Comparative study of type B and type A conditions is presented through pictorial representations.
机译:在本文中,尝试研究通过透水球的旋转振荡产生的流动在不可压缩的夫妇应激流体的无限扩展中。 产生的流动在修改的贝塞尔函数的形式的速度场下解决了斯洛塞型假设。 计算作用在球体上的夫妇引起的外部流量以及内部流量。 这对夫妇对两对夫妻的压力张力和压力张力有贡献。 绘制不同耦合应力参数的流量的轮廓以分析流量。 应注意,由于耦合应力,球体表面附近的颗粒被速度大于球体表面的速度。 B型和型条件的比较研究通过图形表示提出。

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