CFD simulation of particulate flow in a spiral concentrator

被引：10

作者：

Mahran, Gamal M. A. ^{[1
]}

Doheim, Mohamed A. ^{[2
]}

Abu-Ali, Mohamed H. ^{[2
]}

Gawad, Ahmed F. Abdel ^{[3
]}

机构：

[1] King Abdulaziz Univ, Deanship Grad Studies, Jeddah 21589, Saudi Arabia

[2] Assiut Univ, Min Engn Dept, Assiut, Egypt

[3] Zagazig Univ, Fac Engn, Dept Power Mech Engn, Computat Fluid Mech, Zagazig, Egypt

来源：

MATERIALS TESTING | 2015年 / 57卷 / 09期

关键词：

Spiral separator; particulate-flow; numerical simulation; turbulence modeling; gravity separation; PARTICLE; FLUID;

D O I：

10.3139/120.110774

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A spiral concentrator is a gravity concentration device. It was invented by Humphreys in 1941. Firstly, it was designed and developed based on experience and by extensive testing of prototypes and modifications. The main objective of the present study is the simulation of the particulate flow of more realistic solid concentrations (i. e., 15 wt.-% solids) in a spiral separator. This study is based on the Eulerian approach and renormalization group k-epsilon turbulence modeling. The results focus on particulate flow characteristics such as velocity, distribution and concentration of particulates on the spiral trough. The predicted results were compared with the experimental results in case of LD9 coal spiral. Comparisons between numerical and measured data showed good agreement.

引用

页码：811 / 816

页数：6

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