Experimental verification and simulation analysis of a multi-sphere modelling approach for wheat seed particles based on the discrete element method

IF 4.4 1区 农林科学 Q1 AGRICULTURAL ENGINEERING
Jianhua Fan , Hongwei Wang , Kai Sun , Liang Zhang , Lu Wang , Jinwen Zhao , Jianqun Yu
{"title":"Experimental verification and simulation analysis of a multi-sphere modelling approach for wheat seed particles based on the discrete element method","authors":"Jianhua Fan ,&nbsp;Hongwei Wang ,&nbsp;Kai Sun ,&nbsp;Liang Zhang ,&nbsp;Lu Wang ,&nbsp;Jinwen Zhao ,&nbsp;Jianqun Yu","doi":"10.1016/j.biosystemseng.2024.07.009","DOIUrl":null,"url":null,"abstract":"<div><p>A comprehensive modelling methodology is proposed to describe wheat seeds using the discrete element method. By analysing the geometrical characteristics of wheat seeds, the multi-sphere approach is employed to establish 7-, 11-, 15-, 19-, and 23-sphere models based on ellipsoids. The physical and mechanical characteristics of wheat grain are measured and calibrated. Then, the proposed model is verified with several assessment criteria by contrasting the results of the experiment and simulation, including the wheat seed volume fraction, static angle of repose, hopper discharge, rotating drum and “self-flow screening”. By balancing the accuracy of the multi-sphere model and computational efficiency, the 7-sphere or 11-sphere model is found to be the optimal model for determining the static stacking behaviour and hopper discharge of wheat seeds. For the rotating drum and the “self-flow screening”, there is a considerable discrepancy between the simulation and experimental findings due to the surface roughness of the 7- and 11-sphere models. However, 15-, 19-, and 23-sphere models show a high accuracy, which can be applied for drying seeds of the rotating drum and accurately reproducing the sieve permeability of the “self-flow screening” experiment. In summary, the proposed multi-sphere method can be extended to related industry fields by demonstrating satisfactory accuracy in several validation tests.</p></div>","PeriodicalId":9173,"journal":{"name":"Biosystems Engineering","volume":null,"pages":null},"PeriodicalIF":4.4000,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biosystems Engineering","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1537511024001624","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURAL ENGINEERING","Score":null,"Total":0}
引用次数: 0

Abstract

A comprehensive modelling methodology is proposed to describe wheat seeds using the discrete element method. By analysing the geometrical characteristics of wheat seeds, the multi-sphere approach is employed to establish 7-, 11-, 15-, 19-, and 23-sphere models based on ellipsoids. The physical and mechanical characteristics of wheat grain are measured and calibrated. Then, the proposed model is verified with several assessment criteria by contrasting the results of the experiment and simulation, including the wheat seed volume fraction, static angle of repose, hopper discharge, rotating drum and “self-flow screening”. By balancing the accuracy of the multi-sphere model and computational efficiency, the 7-sphere or 11-sphere model is found to be the optimal model for determining the static stacking behaviour and hopper discharge of wheat seeds. For the rotating drum and the “self-flow screening”, there is a considerable discrepancy between the simulation and experimental findings due to the surface roughness of the 7- and 11-sphere models. However, 15-, 19-, and 23-sphere models show a high accuracy, which can be applied for drying seeds of the rotating drum and accurately reproducing the sieve permeability of the “self-flow screening” experiment. In summary, the proposed multi-sphere method can be extended to related industry fields by demonstrating satisfactory accuracy in several validation tests.

基于离散元素法的小麦种子颗粒多球建模方法的实验验证和模拟分析
本文提出了一种利用离散元素法描述小麦种子的综合建模方法。通过分析小麦种子的几何特征,采用多球体方法建立了基于椭圆体的 7 球体、11 球体、15 球体、19 球体和 23 球体模型。对小麦籽粒的物理和机械特性进行了测量和校准。然后,通过对比实验和模拟的结果,包括小麦种子体积分数、静态休止角、料斗出料、旋转滚筒和 "自流筛选",用几个评估标准验证了所提出的模型。通过平衡多球模型的精度和计算效率,发现 7 球或 11 球模型是确定小麦种子静态堆垛行为和料斗出料的最佳模型。对于旋转滚筒和 "自流筛选",由于 7 球和 11 球模型的表面粗糙度,模拟结果与实验结果之间存在相当大的差异。然而,15 球、19 球和 23 球模型显示出较高的精度,可用于旋转滚筒的种子干燥和准确再现 "自流筛分 "实验的筛孔透气性。总之,所提出的多球体方法在多个验证测试中都表现出了令人满意的准确性,可以推广到相关的工业领域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Biosystems Engineering
Biosystems Engineering 农林科学-农业工程
CiteScore
10.60
自引率
7.80%
发文量
239
审稿时长
53 days
期刊介绍: Biosystems Engineering publishes research in engineering and the physical sciences that represent advances in understanding or modelling of the performance of biological systems for sustainable developments in land use and the environment, agriculture and amenity, bioproduction processes and the food chain. The subject matter of the journal reflects the wide range and interdisciplinary nature of research in engineering for biological systems.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信