Rotation of a superhydrophobic cylinder in a viscous liquid

Rotation of a superhydrophobic cylinder in a viscous liquid
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超疏水圆柱体在粘性液体中的旋转

DOI:
10.1017/jfm.2019.776
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发表时间:
2019
影响因子:
3.7
通讯作者:
Siegel, Michael
Siegel, Michael
中科院分区:
工程技术2区
文献类型:
--
作者:
Yariv, Ehud;Siegel, Michael

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超疏水滑移的流体力学定量传统上采用两个典型问题--即单个表面的剪切流和压力驱动的槽道流。我们在这里提倡使用一类新的正则问题,定义为超疏水粒子在静止的液体中的运动。在这些问题中,超疏水效应自然是通过斯托克斯迁移率相对于均匀粒子的相应迁移率的增强来测量的。我们专注于这一类中可能是最简单的问题-无限长圆柱体的旋转,其边界周期性地由有限个无限长的凹槽装饰-目标是计算旋转的流动性(速度与扭矩比)。相关的二维流问题由两个几何参数定义--即数。
The hydrodynamic quantification of superhydrophobic slipperiness has traditionally employed two canonical problems – namely, shear flow about a single surface and pressure-driven channel flow. We here advocate the use of a new class of canonical problems, defined by the motion of a superhydrophobic particle through an otherwise quiescent liquid. In these problems the superhydrophobic effect is naturally measured by the enhancement of the Stokes mobility relative to the corresponding mobility of a homogeneous particle. We focus upon what may be the simplest problem in that class – the rotation of an infinite circular cylinder whose boundary is periodically decorated by a finite number of infinite grooves – with the goal of calculating the rotational mobility (velocity-to-torque ratio). The associated two-dimensional flow problem is defined by two geometric parameters – namely, the number .
靠近滑壁的气缸的斯托克斯阻力
DOI: --
发表时间: 2017
期刊:
影响因子: --
作者:
Uri Kaynan;E. Yariv
通讯作者: E. Yariv
DOI: 10.1063/1.3531683
发表时间: 2010-12
期刊: Physics of Fluids
影响因子: 4.6
作者:
D. Crowdy
通讯作者: D. Crowdy
注意斯托克斯流中粒子的某些材料张量的对称性
DOI: --
发表时间: 1972
影响因子: 3.7
作者:
E. Hinch
通讯作者: E. Hinch
DOI: --
发表时间: 2019
影响因子: 3.7
作者:
Ory Schnitzer;E. Yariv
通讯作者: E. Yariv
Jeong-Moffatt 自由表面斯托克斯流问题中表面活性剂引起的停滞区
DOI: 10.1063/1.4821137
发表时间: 2013
期刊: Physics of Fluids
影响因子: 4.6
作者:
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通讯作者: D. Crowdy