Influence of Structural Parameters on Flow Characteristics of Particle Separation Channels

WU Xuanhao; FAN Zhiyuan; CHEN Zhimin; ZHAO Yuanhao; MA Yinjie; ZHOU Changjiang

doi:10.19554/j.cnki.1001-3563.2026.03.018

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (3) : 168-177. DOI: 10.19554/j.cnki.1001-3563.2026.03.018

Automatic and Intelligent Technology

Influence of Structural Parameters on Flow Characteristics of Particle Separation Channels

WU Xuanhao¹, FAN Zhiyuan², CHEN Zhimin¹, ZHAO Yuanhao³, MA Yinjie³, ZHOU Changjiang^3,*

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Abstract

The work aims to investigate the internal flow field characteristics of a particle separation channel to address the industry pain points of high energy consumption and low efficiency in packaging engineering and optimize the channel structure design to improve stem separation efficiency and reduce energy consumption, and provide theoretical support for enhancing separation performance. Firstly, the RNG k-ε turbulence model combined with enhanced wall treatment was adopted to numerically simulate the internal flow field of the separation channel. Secondly, computational fluid dynamics (CFD) technology was used to analyze the flow field characteristics and pressure drop variations inside the separation channel under different structural parameters. Finally, an orthogonal experimental design method was applied to study the influence of key structural factors on the flow field. The results showed that channel structure optimization had a significant impact on the inlet and outlet pressure difference of the separation channel. When the channel corner angle was changed to 130°, the fluid pressure difference dropped to 269.6 Pa, with a variation rate of -35.5%, effectively reducing system energy consumption while having little impact on the overall flow velocity and flow field stability. Orthogonal experiments and range analysis indicate that the corner of the suspended separation channel is the most critical structural parameter affecting the pressure difference. This paper identifies the optimized structural combination with the lowest pressure difference, which can achieve significant energy consumption reduction while ensuring separation effect, providing an important reference for the low-energy engineering design of separation channels.

Key words

separation channel / computational fluid dynamics / flow field characteristic / structure optimization / orthogonal design

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WU Xuanhao, FAN Zhiyuan, CHEN Zhimin, ZHAO Yuanhao, MA Yinjie, ZHOU Changjiang. Influence of Structural Parameters on Flow Characteristics of Particle Separation Channels[J]. Packaging Engineering. 2026, 47(3): 168-177 https://doi.org/10.19554/j.cnki.1001-3563.2026.03.018

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