GPU-based discrete element simulation on flow stability of flat-bottomed hopper

Li Peng; Zheng Zou; Libo Zhang; Qingshan Zhu; Hongzhong Li

doi:10.1016/j.cjche.2017.07.021

Your Location：

Home >

Browse articles >

GPU-based discrete element simulation on flow stability of flat-bottomed hopper

Fluid Dynamics and Transport Phenomena | Updated：2026-01-06

- GPU-based discrete element simulation on flow stability of flat-bottomed hopper
- GPU-based discrete element simulation on flow stability of flat-bottomed hopper
- 中国化学工程学报（英文版） 2018年26卷第1期页码：43-52
- Affiliations：
  
  2 University of Chinese Academy of Sciences,Beijing,China,100049
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2017.07.021
  中图分类号：
- 纸质出版：2018
- Accepted：
Scan QR Code
Li Peng, Zheng Zou, Libo Zhang, 等. GPU-based discrete element simulation on flow stability of flat-bottomed hopper[J]. 中国化学工程学报（英文版）, 2018,26(1):43-52.

Li Peng, Zheng Zou, Libo Zhang, Qingshan Zhu, Hongzhong Li. GPU-based discrete element simulation on flow stability of flat-bottomed hopper[J]. Chin.J.Chem.Eng., 2018, 26(1): 43-52.
Li Peng, Zheng Zou, Libo Zhang, 等. GPU-based discrete element simulation on flow stability of flat-bottomed hopper[J]. 中国化学工程学报（英文版）, 2018,26(1):43-52. DOI： 10.1016/j.cjche.2017.07.021.

Li Peng, Zheng Zou, Libo Zhang, Qingshan Zhu, Hongzhong Li. GPU-based discrete element simulation on flow stability of flat-bottomed hopper[J]. Chin.J.Chem.Eng., 2018, 26(1): 43-52. DOI： 10.1016/j.cjche.2017.07.021.

摘要

Abstract

In this study

the flow stability of the flat-bottomed hopper was investigated via GPU-based discrete element method (DEM) simulation. With the material height inside the hopper reducing

the fluctuation of the flow rate indicates an unstable discharge. The flow regions of the unstable discharge were compared with that of the stable discharge

a key transformation zone

where the voidage showed the largest difference between unstable and stable discharge

was revealed. To identify the relevance of the key transformation zone and the hopper flow stability

the voidage variation of the key transformation zone with material height reducing was studied. A sharp increase in the voidage in the key transformation zone was considered to be the standard for judging the unstable hopper flow

and the ‘Top-Bottom effect’ of the hopper was defined

which indicated the hopper flow was unstable when the hopper only had the top area and the bottom area

because the voidage of particles in the top area and the bottom area were both variables.

关键词

Keywords

references

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

Dual-site engineering of Ga-modified HZSM-5 towards efficient propane aromatization

CO2 leakage behavior from CO2 hydrate-liquid CO2-seawater coexistence system in unsealed sediments

Study on the effect of modified magnetic nanoparticles Co3O4@HPAM monomer ratio on viscosity reduction of thick oil emulsification

Collaborative control of array integrated distillation units via multi-agents technique

Pulse electrodeposited NiMoZn alloy hydrophobicized with PTFE for high performance alkaline water electrolysis