CPFD simulation on angle of repose with hopper geometries and particle properties,The Canadian Journal of Chemical Engineering

当前位置： X-MOL 学术 › Can. J. Chem. Eng. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

CPFD simulation on angle of repose with hopper geometries and particle properties
The Canadian Journal of Chemical Engineering ( IF 1.6 ) Pub Date : 2022-07-15 , DOI: 10.1002/cjce.24551
Woo Chang Sung ₁ , Seok Woo Chung ₂ , Jun Young Kim _{1,

3} , Dong Hyun Lee ₁

Affiliation

The dynamic angle of repose was simulated by computational particle fluid dynamics (CPFD) when particles were continuously falling. CPFD simulation variables were fitted by comparing the angle of repose with the experimental data and P_s (particle normal stress) variance. Using a fitted simulation, the effect of hopper height (H_h) and hopper inlet diameter (D_in) on the angle of repose was investigated. As H_h increased, the angle of repose decreased up to the height at which the particle velocity reached terminal velocity. Also, as D_in/D_hopper decreased, the descending area of the particle was increased, following an increase in the angle of repose from 11° to 53°. The design of a hopper based on the obtained results shows that the particle discharge rate of the hopper can be increased by about 2.5 times.

中文翻译：

休止角与料斗几何形状和颗粒特性的 CPFD 模拟

当粒子连续下落时，通过计算粒子流体动力学 (CPFD) 模拟动态休止角。_通过比较休止角与实验数据和Ps（粒子法向应力）方差来拟合 CPFD 模拟变量。使用拟合模拟，研究了料斗高度 ( H _h ) 和料斗入口直径 ( D _in ) 对休止角的影响。随着H _h的增加，休止角减小到粒子速度达到终端速度的高度。另外，作为D _in / D_料斗随着休止角从 11° 增加到 53°，颗粒的下降面积增加。基于所得结果的料斗设计表明，料斗的颗粒排放率可提高约2.5倍。

更新日期：2022-07-15

点击分享查看原文

点击收藏

阅读更多本刊最新论文