CIESC Journal ›› 2023, Vol. 74 ›› Issue (4): 1528-1538.DOI: 10.11949/0438-1157.20221568
• Fluid dynamics and transport phenomena • Previous Articles Next Articles
Jinsheng REN1(), Kerun LIU1, Zhiwei JIAO1, Jiaxiang LIU2, Yuan YU1()
Received:
2022-12-05
Revised:
2023-02-09
Online:
2023-06-02
Published:
2023-04-05
Contact:
Yuan YU
任金胜1(), 刘克润1, 焦志伟1, 刘家祥2, 于源1()
通讯作者:
于源
作者简介:
任金胜(1998—),男,硕士研究生,renjs630@163.com
基金资助:
CLC Number:
Jinsheng REN, Kerun LIU, Zhiwei JIAO, Jiaxiang LIU, Yuan YU. Research on the mechanism of disaggregation of particle aggregates near the guide vanes of turbo air classifier[J]. CIESC Journal, 2023, 74(4): 1528-1538.
任金胜, 刘克润, 焦志伟, 刘家祥, 于源. 涡流空气分级机近导叶处团聚体解团机理研究[J]. 化工学报, 2023, 74(4): 1528-1538.
参数 | 数值 |
---|---|
小颗粒粒径dp/μm | 10 |
团聚体粒径Dagg/μm | 30 |
颗粒密度 | 2150[ |
杨氏模量E | 7.3 |
泊松比μ | 0.17 |
颗粒间碰撞恢复系数ep | 0.75[ |
颗粒间静摩擦因数μrp | 0.75[ |
颗粒间滚动摩擦因数μsp | 0.02[ |
颗粒壁面碰撞恢复系数ew | 0.7[ |
颗粒壁面静摩擦因数μrw | 0.3[ |
颗粒壁面滚动恢复系数μsw | 0.005[ |
表面能参数γ/(J·m-2) | 0.0826[ |
Table 1 Parameter setting of discrete element simulation
参数 | 数值 |
---|---|
小颗粒粒径dp/μm | 10 |
团聚体粒径Dagg/μm | 30 |
颗粒密度 | 2150[ |
杨氏模量E | 7.3 |
泊松比μ | 0.17 |
颗粒间碰撞恢复系数ep | 0.75[ |
颗粒间静摩擦因数μrp | 0.75[ |
颗粒间滚动摩擦因数μsp | 0.02[ |
颗粒壁面碰撞恢复系数ew | 0.7[ |
颗粒壁面静摩擦因数μrw | 0.3[ |
颗粒壁面滚动恢复系数μsw | 0.005[ |
表面能参数γ/(J·m-2) | 0.0826[ |
条件 | 参数 |
---|---|
Dagg | a1=0.26, a2=1, a3=0.5, a4=0 |
3lD | a1=0.068, a2=1, a3=1, a4=4 |
7lD | a1=0.49, a2=3, a3=0.25, a4=1 |
Dagg | a1=1.9, a2=1, a3=2/3, a4=0 |
Table 2 Parameter selection for critical shear stress of aggregates in flow field[44]
条件 | 参数 |
---|---|
Dagg | a1=0.26, a2=1, a3=0.5, a4=0 |
3lD | a1=0.068, a2=1, a3=1, a4=4 |
7lD | a1=0.49, a2=3, a3=0.25, a4=1 |
Dagg | a1=1.9, a2=1, a3=2/3, a4=0 |
入口风速/(m·s-1) | |
---|---|
6 | 4.37 |
12 | 9.96 |
18 | 14.61 |
24 | 19.63 |
Table 3 Average velocity of all particles in X direction v¯X
入口风速/(m·s-1) | |
---|---|
6 | 4.37 |
12 | 9.96 |
18 | 14.61 |
24 | 19.63 |
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