Multidimensional Analysis of the Transport Characteristics of Clay Balls in a Digital Slurry Pipeline

DOI

10.2991/978-94-6463-658-1_87How to use a DOI?

Keywords

numerical simulation; transport characteristics; homogeneous slurry; clay ball

Abstract

During the dredging process, the characteristics of slurry transport in the pipeline are closely related to dredging efficiency. In certain transport conditions, the slurry in the pipeline may carry clay ball particles, which can affect transport efficiency. This paper uses a CFD-DEM model and a two-way coupling method to conduct numerical simulation analysis of the transport characteristics of clay ball particles in a slurry pipeline. After model validation using field detection data, the movement state and flow field distribution of clay balls in the slurry were analyzed. The following conclusions were drawn: After individual particles and particle groups enter the pipeline, their velocity decreases rapidly, especially for particle groups, which quickly settle to the bottom of the pipe and accumulate. The front particles move faster, while the rear particles move more slowly and gradually stop, eventually moving slowly to the pipe outlet under the influence of the slurry. The pressure in the pipeline decreases significantly along the way, and a local low-pressure area appears around the clay balls. The presence of clay balls occupies part of the flow cross-section, causing the flow velocity in that region to increase, while the lowest velocity occurs around the clay balls.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Sheng Li
AU  - Yu Zhou
AU  - Zenghai Yang
AU  - Sheng Wang
PY  - 2025
DA  - 2025/03/03
TI  - Multidimensional Analysis of the Transport Characteristics of Clay Balls in a Digital Slurry Pipeline
BT  - Proceedings of the 2024 10th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2024)
PB  - Atlantis Press
SP  - 833
EP  - 838
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-658-1_87
DO  - 10.2991/978-94-6463-658-1_87
ID  - Li2025
ER  -