Finite element lattice Boltzmann simulations of free surface flow in a concentric cylinder

被引：19
作者：
Wardle, Kent E. [1 ]
Lee, Taehun [2 ]
机构：
[1] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA
[2] CUNY City Coll, Dept Mech Engn, New York, NY 10031 USA
来源：
COMPUTERS & MATHEMATICS WITH APPLICATIONS | 2013年 / 65卷 / 02期
基金：
美国国家科学基金会;
关键词：
Finite element method; Lattice Boltzmann method; Free surface flow; Concentric cylinder; ANNULAR CENTRIFUGAL CONTACTOR; EQUATION;
D O I：
10.1016/j.camwa.2011.09.020
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The annular centrifugal contactor is a compact mixer/centrifuge device designed for liquid-liquid extraction operations in processes for recycling nuclear fuel. The flow in the annulus of a centrifugal contactor is similar to the Taylor vortex flow with superimposed axial flow. The major differences are that the contactor has one end that is open to air and the free surface effects dominate the annular flow. In this study, we demonstrate the application of a finite element lattice Boltzmann equation (FE-LBE) method to the annular mixing geometry as found in a centrifugal contactor. The computational results are validated with available experimental observations with the Reynolds number (Re) in the range of 1250 < Re < 2000. The rotation rate of the inner cylinder determines the final flow modes, and time-dependent traveling waves emerge past a critical Re. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：230 / 238
页数：9
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