DEM simulation of binary mixing particles with different density in an intensive mixer

Zuo, Zhijian; Gong, Shuguang; Xie, Guofeng; Zhang, Jianping

doi:10.1016/j.powtec.2021.01.064

Cited by 20 publications

(4 citation statements)

References 40 publications

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“…The rotating drum is set to 12,000 sampling units with x , y , and z of 12 mm, and the unit containing more than 10 particles is selected for calculation. The specific calculation is shown in eq normalR normalS normalD = 1 N su − 1 normalΣ i = 1 N su false( x i − x̅ false) 2 x̅ × 100 % where N su is the number of sampling units and x and x̅ are the particle proportion and average particle proportion of sampling units, respectively.…”

Section: Methodsmentioning

confidence: 99%

Study on Segregation and Heat Transfer of Polydisperse Particles in a Three-Dimensional Rotating Drum by Using the DEM

Zhang

Liu

et al. 2023

Ind. Eng. Chem. Res.

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The segregation and heat transfer of polydisperse particles in the rotating drum have an important impact on many industrial fields, and the theory is not completely clear. Based on the verified discrete element method model, the segregation and heat transfer of polydisperse particles in the rotating drum indirectly heated by the side wall are studied. The results show that the polydisperse particles form the segregation structure of the radial core and axial band in the rolling regime rotating drum. The comparison with monodisperse particles indicates that the heat transfer of polydisperse particles is influenced by the segregation structure. Small changes in rotation speed and filling level in the rolling regime do not alter the particle segregation and heat transfer structure. The addition of lifters is an effective means to reduce particle segregation and improve the heat transfer effect. This work provides a reference for revealing the segregation and heat transfer theory of polydisperse particles in the rotating drum.

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Section: Methodsmentioning

confidence: 99%

Study on Segregation and Heat Transfer of Polydisperse Particles in a Three-Dimensional Rotating Drum by Using the DEM

Zhang

Liu

et al. 2023

Ind. Eng. Chem. Res.

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“…Relevant reasons will be given in Section 3.2. The physical parameters of 316 L stainless steel powder have been systematically verified in the previous study [43], while those for the WC powder were given in Table 2 by considering the 316 L powder [44].…”

Section: Simulation Conditionsmentioning

confidence: 96%

Composition regulation of composite materials in laser powder bed fusion additive manufacturing

Yao

Wang²,

Cai³

et al. 2022

Powder Technology

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“…The mixing device was made of steel. Its physical parameters were density of 7800 kg/m 3 , the tank shear modulus of 7×10 10 Pa, and the tank Poisson's ratio of was 0.30. The baffle was evenly distributed inside the drum cylinder.…”

Section: Numerical Simulation System Of Blade Brown Rice Germination ...mentioning

confidence: 99%

“…However, the mixing process of particles in the tank of the brown rice germination device is very complicated. The results of most experiments cannot directly obtain the particle motion information and accurately evaluate the mixing uniformity of the particles in the tank [10,11] . The optimization design through continuous experiments also has problems such as moneyconsuming and time-consuming [12] .…”

Section: Introductionmentioning

confidence: 99%

Discrete element simulation of the grain mixing law in brown rice germination device

Yan,

Xie,

Bai

et al. 2024

International Journal of Agricultural and Biological Engineering

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The discrete element method (DEM) was used in this study to numerically simulate the mixing process and motion law of particles in brown rice germination device. And the reliability of simulation experiments was verified through physical experiments. In the discrete element simulation experiment, there were three mixing stages in the mixing process of the particles. The particle motion conditions at different rotational speeds were rolling, cascading, cataracting and centrifuging. The lower the filling degree, the higher the particle mixing efficiency. The radial trajectory of the particles was approximated as an elliptical helix that continuously shrank towards the axis. The research results indicated that under the same speed and filling conditions, the motion of brown rice particles in both the simulated and physical test environments is rolling and the drop height is the same.

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DEM simulation of binary mixing particles with different density in an intensive mixer

Cited by 20 publications

References 40 publications

Study on Segregation and Heat Transfer of Polydisperse Particles in a Three-Dimensional Rotating Drum by Using the DEM

Study on Segregation and Heat Transfer of Polydisperse Particles in a Three-Dimensional Rotating Drum by Using the DEM

Composition regulation of composite materials in laser powder bed fusion additive manufacturing

Discrete element simulation of the grain mixing law in brown rice germination device

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