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

Chen, Lumin, Liu, Kaixuan, Yao, Yufeng , Yao, Jun, Su, Zixue and Luo, Guofo (2020) 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. Journal International Journal for Computational Methods in Engineering Science and Mechanics, 21 (5). pp. 231-242. ISSN 1550-2287

Full content URL: https://doi.org/10.1080/15502287.2020.1809554

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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
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Analysis of bending radius of sludge discharge pipe.pdf - Whole Document
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Item Type:Article
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Abstract

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.

Keywords:Shield machine, muddy water circulation, solid-liquid coupling, discrete element method, computational fluid dynamics
Subjects:H Engineering > H141 Fluid Mechanics
H Engineering > H143 Structural Mechanics
H Engineering > H130 Computer-Aided Engineering
H Engineering > H140 Mechanics
Divisions:College of Science > School of Engineering
ID Code:42610
Deposited On:19 Oct 2020 13:52

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