| 用颗粒离散元法模拟料仓卸料过程 |
| |
| 引用本文： | 徐泳,K. D. Kafui,C. Thornton.用颗粒离散元法模拟料仓卸料过程[J].农业工程学报,1999,15(3):65-69. |
| |
| 作者姓名： | 徐泳 K. D. Kafui C. Thornton |
| |
| 作者单位： | 中国农业大学;英国阿斯顿大学;英国阿斯顿大学 |
| |
| 摘 要： | 采用颗粒离散元法模拟了无粘软颗粒和粘连性硬颗粒在平底仓卸料全过程，并与已完成的无粘硬颗粒结果比较。发现颗粒的材料模量对卸料特性影响甚小，而颗粒表面粘连性对卸料流率有显著的迟滞作用。在大出口情况，结拱不易形成，并出现颗粒自由下落现象。
|
| 关 键 词： | 离散元法 颗粒 散体 粘连性 料仓 |
| 收稿时间： | 1/6/1999 12:00:00 AM |
| 修稿时间： | 1999-01-06 |
Silo Discharge Simulations With Different Particulate Properties Using the Distinct Element Method |
| |
| XU Yong,K. D. Kafui and C. Thornton.Silo Discharge Simulations With Different Particulate Properties Using the Distinct Element Method[J].Transactions of the Chinese Society of Agricultural Engineering,1999,15(3):65-69. |
| |
| Authors: | XU Yong K D Kafui and C Thornton |
| |
| Institution: | (XU Yong);
(China Agricultural University |
| |
| Abstract: | Simulations of particulate discharge for a flat bottomed silo with 60 % width of orifice, filled with inadhesive soft and adhesive hard particles, were done using the Distinct Element Method for particle system. The results were compared with the case of inadhesive hard particles. It was observed that there were no significant differences with the different modulus but adhesion can affect discharge rate with a significant delay. It was observed that, with a wider orifice, kinematic arching effect vanishes and even free gravity fall arises. |
| |
| Keywords: | distinct element method particle granular materials adhesive silo |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《农业工程学报》浏览原始摘要信息 |
| 点击此处可从《农业工程学报》下载免费的PDF全文 |
