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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Analysis of bending radius of sludge discharge pipe.pdf - Whole Document 1MB |
| Item Type: | Article |
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| Item Status: | Live Archive |
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 |
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| 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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