Numerical flow simulation of fresh concrete in mixing truck

被引：4
|
作者：
Cao, Guodong [1 ]
Liu, Lide [1 ]
Long, Shiguo [1 ]
Jiang, Shengqiang [1 ]
Tan, Yuanqiang [2 ]
Li, Zhuguo [3 ]
机构：
[1] Xiangtan Univ, Coll Civil Engn, Xiangtan 411105, Peoples R China
[2] Huaqiao Univ, Inst Mfg Engn, Xiamen 361021, Peoples R China
[3] Yamaguchi Univ, Grad Sch Sci & Technol Innovat, Ube, Yamaguchi, Japan
来源：
POWDER TECHNOLOGY | 2022年 / 409卷
关键词：
Fresh concrete; DEM; Mixing truck; Uniformity; Discharging process; DEM; SEGREGATION;
D O I：
10.1016/j.powtec.2022.117781
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The structure of concrete truck not only affects the homogeneity of fresh concrete but also influences the construction efficiency. The repeatability of fresh concrete's test is worse and its cost is high. With this in mind, the simulation of fresh concrete flowing in concrete truck was conducted. The effects of screw pitch and height of blade on discharging speed were analyzed. The numerical results shown that increasing the screw pitch of blade at posterior cone can significantly promote the discharging speed. The discharging uniformity was also investigated. It is shown that increasing the height of blade or decreasing the screw pitch of blade can improve the homogeneity.
引用
收藏
页数：8
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