Characterization of multiphase gas-solid flow and accuracy of turbulence models for lower stage cyclones used in suspension preheaters

Marek Wasilewski; Stanis?aw Anweiler; Maciej Masiukiewicz

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Characterization of multiphase gas-solid flow and accuracy of turbulence models for lower stage cyclones used in suspension preheaters

Separation Science and Engineering | Updated：2026-01-06

- Characterization of multiphase gas-solid flow and accuracy of turbulence models for lower stage cyclones used in suspension preheaters
- Chinese Journal of Chemical Engineering Vol. 27, Issue 7, Pages: 1618-1629(2019)
- Affiliations：
  
  1. Faculty of Production Engineering and Logistics, Opole University of Technology, 76 Proszkowska St.,Opole,Poland,45-758
  2. Faculty of Mechanical Engineering, Opole University of Technology, 76 Proszkowska St.,Opole,Poland,45-758
- Author bio：
- Funds：
- DOI：
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- Published：2019
- Accepted：
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Marek Wasilewski, Stanis?aw Anweiler, Maciej Masiukiewicz. Characterization of multiphase gas-solid flow and accuracy of turbulence models for lower stage cyclones used in suspension preheaters[J]. Chinese Journal of Chemical Engineering, 2019, 27(7): 1618-1629.
DOI：

Marek Wasilewski, Stanis?aw Anweiler, Maciej Masiukiewicz. Characterization of multiphase gas-solid flow and accuracy of turbulence models for lower stage cyclones used in suspension preheaters[J]. Chinese Journal of Chemical Engineering, 2019, 27(7): 1618-1629. DOI：

摘要

Abstract

This study involved the analysis and characterization of the multiphase flow phenomenon inside the lower stage cyclone separator used in the clinker burning process. The analysis was performed using both CFD and experimental research methods. Very few studies are devoted to such types of cyclone separators

which in addition to their basic functions are also responsible for the technological process. Due to the atypical working conditions of these cyclone separators

they are characterized with a complex geometry

which significantly differs from that of the traditional separators.Furthermore

the evaluation of the accuracy and level of reliability of the two models of turbulence closure-

k-ε

RNG and RSM (RANS)

and the LES. The results obtained led to the conclusion that for the lower stage cyclone separators

the LES model proved to be the most accurate (both in the case of forecasting the separation efficiency and pressure drop). The performance parameter (in particular the separation efficiency) values obtained for the RSM model were also characterized by high accuracy. The

k-ε

RNG model was characterized by significantly larger deviation

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