Flow analysis in right-angled pipes with different geometric shapes and parameters for sludge discharge in slime shield machines measured using a CFD-DEM method

被引：5

作者：

Chen, Lumin ^{[1
]}

Liu, Kaixuan ^{[1
]}

Yao, Yufeng ^{[2
]}

Yao, Jun ^{[3
]}

Su, Zixue ^{[4
]}

Luo, Guofu ^{[1
]}

机构：

[1] Zhengzhou Univ Light Ind, Sch Mech & Elect Engn, Zhengzhou 450002, Peoples R China

[2] Univ West England, Dept Engn Design & Math, Bristol, Avon, England

[3] Univ Lincoln, Sch Engn, Lincoln, England

[4] China Railway Tunnel Stock Co Ltd, Zhengzhou, Peoples R China

来源：

INTERNATIONAL JOURNAL FOR COMPUTATIONAL METHODS IN ENGINEERING SCIENCE & MECHANICS | 2020年 / 21卷 / 05期

关键词：

Shield machine; muddy water circulation; solid-liquid coupling; discrete element method; computational fluid dynamics; SURFACE SETTLEMENT; THRUST SYSTEM; ENERGY;

D O I：

10.1080/15502287.2020.1809554

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Mud and gravel deposition often occurs in circulation systems of pumps. In this paper, a liquid-solid coupling method combining CFD and DEM is proposed to study two-phase flow behavior of water, The flow characteristics of water-clay mud and the motion characteristics of gravel were simulated under different discharge pipe bending radii and geometry shape conditions. Numerical results showed that for a circular cross section pipe with a fixed bending radius, the collision times between the gravel particles and the pipe wall decreased with the increase of the bending radius.

引用

页码：231 / 242

页数：12

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