| Issue |
EPJ Web Conf.
Volume 340, 2025
Powders & Grains 2025 – 10th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 12001 | |
| Number of page(s) | 4 | |
| Section | Emerging Topics: Additive Manufacturing & Meta Materials, Microgravity, Tribo-Charging, Active Particles, and Artificial Intelligence & Machine Learning | |
| DOI | https://doi.org/10.1051/epjconf/202534012001 | |
| Published online | 01 December 2025 | |
https://doi.org/10.1051/epjconf/202534012001
Dynamics of particulate materials discharged in a granular vibration pumping system
1 Department of Mechanical Engineering and Science, Kyoto University, 615-8540 Kyoto, Japan
2 DENSE Ltd., 530-0001 Osaka, Japan
3 Graduate School of Engineering Science, The University of Osaka, 560-8531 Osaka, Japan
4 Department of Mechanical Engineering, The University of Osaka, 565-0871 Osaka, Japan
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 1 December 2025
Abstract
A granular vibration pumping system, which vertically transports particles using a vibrating pipe, offers industrial advantages, such as a compact design, high dust tolerance, and the elimination of pneumatic materials. When the pipe is inserted into particulate materials and vibrated, particles climb inside through a process known as granular capillary action. While earlier studies focused on the height of particle ascent in a pipe, this research emphasizes particle expulsion and transport dynamics, which are more critical for practical applications. High-speed camera observations revealed a unique granular fountain phenomenon at the outlet of a straight pipe. In addition, experiments with a bent pipe were performed to facilitate the collection of transported particles, enabling the evaluation of granular transport rates under various vibration conditions.
© The Authors, published by EDP Sciences, 2025
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