Moisture content characterization method of wet particles of brown rice based on discrete element simulation
Moisture content characterization method of wet particles of brown rice based on discrete element simulation
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DOI：
10.1016/j.powtec.2023.118775
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发表时间：
2023-07
影响因子：
5.2
通讯作者：
Jinyin Bai;Biao Xie;Jiagang Yan;Yun Zheng;Nian Liu;Qiang Zhang
中科院分区：
文献类型：
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作者：
Jinyin Bai;Biao Xie;Jiagang Yan;Yun Zheng;Nian Liu;Qiang Zhang
基于离散元模拟对糙米湿颗粒的水分含量进行表征。首先通过物理实验测定了不同含水率下的休止角，建立了含水率与休止角的回归方程，R2=0.9718。然后，通过离散元仿真实验，建立了休止角与关键离散元参数之间的数学模型，R2=0.9938。最后建立了水分含量与关键离散元参数之间的数学模型，验证了模拟休止角与物理休止角的最大相对误差为3.09%。结果表明，构建的糙米湿粒离散元参数模型可用于仿真研究，对糙米加工装置的设计具有指导意义。
The moisture content of brown rice wet particles was characterized based on discrete element simulation. Firstly, the angle of repose under different moisture content was determined by physical experiment, and the regression equation of moisture content and angle of repose was established,R2= 0.9718. Then, the mathematical model between the angle of repose and the key discrete element parameters was established by discrete element simulation experiments,R2= 0.9938. Finally, a mathematical model between moisture content and key discrete element parameters was established, and the maximum relative error of simulated angle of repose and physical angle of repose was verified to be 3.09%. The results show that the constructed wet grain discrete element parameter model of brown rice can be used for simulation research, which has guiding significance for the design of brown rice processing device.