Discharge Dynamics Responses in Forced Granular Flow of Rice Particle Beds

Dan Zhao, Zhuozhuang Li, Xianle Li, Zhiqin Zhang and Dong Liu ()
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Dan Zhao: School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China
Zhuozhuang Li: College of Engineering, Northeast Agricultural University, Harbin 150030, China
Xianle Li: College of Engineering, Northeast Agricultural University, Harbin 150030, China
Zhiqin Zhang: School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China
Dong Liu: School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China

Agriculture, 2025, vol. 15, issue 15, 1-21

Abstract: The discharge behavior of agricultural materials from silos is significantly influenced by external driving forces. Pressurized discharge from silos is an effective method for analyzing localized stress distribution and controlling flow rates. In this study, a combined approach of experiments and Discrete Element Method (DEM) simulations was employed to investigate the forced flow behavior of rice particle beds. Detailed analyses were conducted on flow patterns, velocity distributions, mass flow rates, dynamic arch formation, bottom stress distribution, and load propagation. Furthermore, the dissipative power during discharge was calculated based on the local shear at the silo wall, and a master curve for the dissipative power was presented. This curve facilitates the prediction of energy dissipation during silo discharge under various conditions. The findings provide a foundation and data support for the structural optimization of silos.

Keywords: discharge behavior; forced flow; rice particle beds; a master curve for the dissipative power; prediction of energy dissipation (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
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