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首页> 外文期刊>Indian Journal of Theoretical Physics >Creeping motion of a porous sphere with impermeable core in a spherical container
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Creeping motion of a porous sphere with impermeable core in a spherical container

机译:球形容器中具有不可渗透芯的多孔球体的蠕变运动

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摘要

The creeping motion of a porous sphere with impermeable core at the instant it passes the center of a spherical container with Ochoa-Tapia and Whitaker's stress jump boundary condition has been investigated. The Brinkman's model for the flow inside the porous sphere and the Stokes equation for the flow in the spherical container were used to study the motion. The stream function and the pressure distribution, both for the flow inside the porous sphere and inside the spherical container are obtained in terms of modified Bessel functions of the first kind and second kind and Gegenbauer function of the first kind. The drag force experienced by the porous spherical particle and wall correction factor is determined.
机译:研究了具有不可渗透核心的多孔球体在通过带有Ochoa-Tapia的球形容器中心时的蠕变运动,并研究了Whitaker的应力跃变边界条件。多孔球体内的Brinkman模型和球形容器中的Stokes方程用于研究运动。多孔球内部和球形容器内部的流动的流函数和压力分布是根据第一类和第二类贝塞尔函数的改进形式以及第一类Gegenbauer函数获得的。确定多孔球形颗粒经受的阻力和壁校正因子。

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