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; Luo, Guofu

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.

• Journal Article Type: Article
• Acceptance Date: Jun 1, 2020
• Online Publication Date: Sep 8, 2020
• Publication Date: Sep 8, 2020
• Deposit Date: Apr 17, 2021
• Journal: International Journal for Computational Methods in Engineering Science and Mechanics
• Print ISSN: 1550-2287
• Electronic ISSN: 1550-2295
• Publisher: Taylor & Francis
• Peer Reviewed: Peer Reviewed
• Volume: 21
• Issue: 5
• Pages: 231-242
• DOI: https://doi.org/10.1080/15502287.2020.1809554
• Keywords: Computational Mechanics; Computational Mathematics
• Public URL: https://uwe-repository.worktribe.com/output/7263332
• Additional Information: Peer Review Statement: The publishing and review policy for this title is described in its Aims & Scope.; Aim & Scope: http://www.tandfonline.com/action/journalInformation?show=aimsScope&journalCode=ucme20; Published: 2020-09-08