Motion of a spherical particle in a cylindrical channel using arbitrary Lagrangian-Eulerian method
Motion of a spherical particle in a cylindrical channel using arbitrary Lagrangian-Eulerian method
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DOI：
10.1016/j.jcis.2007.09.060
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发表时间：
2008-01-15
影响因子：
9.9
通讯作者：
Bhattacharjee, Subir
中科院分区：
文献类型：
--
作者：
Al Quddus, Noor;Moussa, Walied A.;Bhattacharjee, Subir
采用由任意拉格朗日-欧拉(ALE)运动学中定义的Navier-Stokes方程和连续性方程组成的有限元粒子输运模型，描述了刚性未带电球形粒子在等截面圆柱流道中的运动。给出了球形颗粒在无限长圆柱形通道和有限长通道中与流体一起运动时的壁面修正因子。考虑了两种有限通道效应，即颗粒在开口通道入口和出口的运动，以及颗粒向通道封端的运动。数值模型与许多已有的Stokes流区无限流道的分析结果吻合较好。给出了阻碍因子的简单关联式。(C)2007 Elsevier Inc.保留所有权利。
A finite element particle transport model, consisting of Navier-Stokes and continuity equations defined in arbitrary Lagrangian-Eulerian (ALE) kinematics, is employed to describe the motion of a rigid uncharged spherical particle in a cylindrical channel of uniform cross-section. The wall correction factors for the spherical particle moving with a fluid confined in an infinitely long cylindrical channel, as well as in finite length channels are presented. Two finite channel effects are considered, namely, motion of the particle at the entrance and exit of an open channel, and the motion of a particle toward the capped end of the channel. The numerical model demonstrates good agreement with many existing analytical results for infinite channels in the Stokes flow regime. Simple correlations for the hindrance factors are presented. (C) 2007 Elsevier Inc. All rights reserved.