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- Title
CFD-DEM Simulation for the Distribution and Motion Feature of Solid Particles in Single-Channel Pump.
- Authors
Tang, Cheng; Kim, Youn-Jea
- Abstract
Since various foreign bodies can cause clogging and wear in single-channel pumps, considerable attention has been focused on the numerical study of solid-liquid flows in the single-channel pump. However, conventional numerical simulation cannot responsibly assess the significant effect of the particle material properties, inter-particle collision, and size on the pump. In consideration of the particle features and behaviors, the Computational Fluid Dynamics (CFD)-Discrete Element Method (DEM) coupling method was applied for the first time to simulate the solid-liquid flows in a single-channel pump. The results showed that the smaller particles possessed a wider velocity distribution range and velocity peak, while the larger particles exerted a greater contact force. Additionally, the pie-shaped particles had the most severe collisions, and spherical particles had the least in total. Furthermore, the hub and shroud wall suffered a minor contact force, but the blade and volute wall both sustained a considerable contact force. This paper could present some supply data for future research on the optimization of a single-channel pump.
- Subjects
COMPUTATIONAL fluid dynamics; PARTICLES; PUMPING machinery; FOREIGN bodies; CENTRIFUGAL pumps; MOTION
- Publication
Energies (19961073), 2020, Vol 13, Issue 19, p4988
- ISSN
1996-1073
- Publication type
Article
- DOI
10.3390/en13194988