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Discharge Dynamics Responses in Forced Granular Flow of Rice Particle Beds

Author

Listed:
  • Dan Zhao

    (School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China
    These authors contributed equally to this work.)

  • Zhuozhuang Li

    (College of Engineering, Northeast Agricultural University, Harbin 150030, China
    These authors contributed equally to this work.)

  • 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
    Key Laboratory of Effective Utilization of Agricultural Water Resources of Ministry of Agriculture and Rural Affairs, Northeast Agricultural University, Harbin 150030, China
    Heilongjiang Provincial Key Laboratory of Water Resources and Water Conservancy Engineering in Cold Region, Northeast Agricultural University, Harbin 150030, China
    Key Laboratory of Water-Saving Agriculture of Ordinary University in Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China)

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.

Suggested Citation

  • Dan Zhao & Zhuozhuang Li & Xianle Li & Zhiqin Zhang & Dong Liu, 2025. "Discharge Dynamics Responses in Forced Granular Flow of Rice Particle Beds," Agriculture, MDPI, vol. 15(15), pages 1-21, August.
    • Handle: RePEc:gam:jagris:v:15:y:2025:i:15:p:1696-:d:1718447
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