Numerical simulation analysis of particle motion behavior and key structures inside a novel cyclone separator

Jie Kou; Hang Qiu; Chenyang Wang

doi:10.1016/j.cjche.2025.03.015

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Numerical simulation analysis of particle motion behavior and key structures inside a novel cyclone separator

Updated：2026-01-06

- Numerical simulation analysis of particle motion behavior and key structures inside a novel cyclone separator
- Numerical simulation analysis of particle motion behavior and key structures inside a novel cyclone separator
- 中国化学工程学报（英文版） 2025年85卷第9期页码：114-127
- Affiliations：
  
  1. China University of Petroleum East China, Qingdao Campus,Qingdao,China,266580
  2. China University of Petroleum Huadong,Qingdao,China,266580
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2025.03.015
  中图分类号：
- 纸质出版：2025
- Accepted：
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Jie Kou, Hang Qiu, Chenyang Wang. Numerical simulation analysis of particle motion behavior and key structures inside a novel cyclone separator[J]. 中国化学工程学报（英文版）, 2025,85(9):114-127.

Jie Kou, Hang Qiu, Chenyang Wang. Numerical simulation analysis of particle motion behavior and key structures inside a novel cyclone separator[J]. Chinese Journal of Chemical Engineering, 2025, 85(9): 114-127.
Jie Kou, Hang Qiu, Chenyang Wang. Numerical simulation analysis of particle motion behavior and key structures inside a novel cyclone separator[J]. 中国化学工程学报（英文版）, 2025,85(9):114-127. DOI： 10.1016/j.cjche.2025.03.015.

Jie Kou, Hang Qiu, Chenyang Wang. Numerical simulation analysis of particle motion behavior and key structures inside a novel cyclone separator[J]. Chinese Journal of Chemical Engineering, 2025, 85(9): 114-127. DOI： 10.1016/j.cjche.2025.03.015.

摘要

Abstract

This study proposes a novel cyclone separator with a conical inner core to enhance particle classification efficiency in oil and gas wellhead-recovered liquids. Particle motion and force dynamics are analyzed to optimize key structural parameters

including inlet diameter (

)

overflow pipe diameter (

)

insertion depth (

)

and bottom flow pipe diameter (

). Numerical simulations employ the Reynolds stress turbulence model

SIMPLEC algorithm

and discrete phase model to evaluate separation performance in a gas-liquid two-phase system. Results indicate that a smaller

improves fine particle separation but increases turbulence; an optimal range of

= 0.35-0.4 is recommended. Larger

enhances the diversion ratio

aiding fine particle discharge (

= 0.25-0.35). Increased

facilitates fine particle overflow but induces vortices

whereas a smaller

stabilizes the bottom flow for larger particle separation (

= 0.5-0.75). A reduced

enhances centrifugal force and separation efficiency but may cause turbulence; an optimal

of 0.6-0.65 is suggested for stability. These findings provide valuable design guidelines for improving cyclone separator perfor

mance in multiphase flow applications.

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