Numerical simulation of a dense solid particle flow inside a cyclone separator using the hybrid Euler–Lagrange approach

Kozołub, Paweł; Klimanek, Adam; Białecki, Ryszard A.; Adamczyk, Wojciech

doi:10.1016/j.partic.2016.09.003

Cited by 58 publications

(22 citation statements)

References 49 publications

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“…As for the third category of CFD studies, category (III), compared to the previous categories, there are fewer E-L studies with two-way coupling [34,77,[98][99][100][101][102][103][104][105] and only a limited number of studies with four-way coupling [35,[106][107][108][109]. In almost all of the studies (except [99]), due to the lack of available experimental data for the cyclone flow loaded with particles, no comparison of the predicted modification of velocity profiles (compared to the single-phase flow) with the measurements is provided.…”

Section: E-l and Hybrid Model Simulationsmentioning

confidence: 99%

“…In almost all of the studies (except [99]), due to the lack of available experimental data for the cyclone flow loaded with particles, no comparison of the predicted modification of velocity profiles (compared to the single-phase flow) with the measurements is provided. Instead, the predicted overall/grade efficiencies [34,77,101,102] and/or pressure drops [34,35,98,101,102,106,107,109] are compared with the measurements for certain ranges of particle mass loading. A summary of the existing four-way coupled CFD studies of gas-solid cyclones operating at ambient temperature and with inlet mass loading ratios higher than 0.1 kg s /kg g is presented in Table 2.…”

Section: E-l and Hybrid Model Simulationsmentioning

confidence: 99%

“…The authors have claimed that this discrepancy is due to the simplification of the CFD model, neglecting particle-particle collisions and agglomeration. Both CFD-DEM [107][108][109] and hybrid E-E and E-L approaches [35,106] have been used to consider the effect of particle-particle interactions in existing cyclone separator simulation studies. In the CFD-DEM study of Zhou et al [107], the effect of large (2000-2800 µm) and "ultra light" particles with a solid to gas density ratio of 33 is investigated for different loadings of particles up to 0.46 kg s /kg g .…”

Section: Effect Of Solids Loadingmentioning

confidence: 99%

“…In most of the existing four-way coupled CFD simulations of cyclones using the hybrid methods [35,106], the focus is on the effect of solids loading on the performance of cyclones. Hwang et al [35] carried out DDPM-KTGF simulations of a pilot-scale cyclone laden with 2000 µm diameter particles and reported a minimum in the predicted pressure drop versus solids loading.…”

Section: Effect Of Solids Loadingmentioning

confidence: 99%

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CFD Modeling of Gas–Solid Cyclone Separators at Ambient and Elevated Temperatures

Nakhaei

Tian

et al. 2020

Processes

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Gas–solid cyclone separators are widely utilized in many industrial applications and usually involve complex multi-physics of gas–solid flow and heat transfer. In recent years, there has been a progressive interest in the application of computational fluid dynamics (CFD) to understand the gas–solid flow behavior of cyclones and predict their performance. In this paper, a review of the existing CFD studies of cyclone separators, operating in a wide range of solids loadings and at ambient and elevated temperatures, is presented. In the first part, a brief background on the important performance parameters of cyclones, namely pressure drop and separation efficiency, as well as how they are affected by the solids loading and operating temperature, is described. This is followed by a summary of the existing CFD simulation studies of cyclones at ambient temperature, with an emphasis on the high mass loading of particles, and at elevated temperatures. The capabilities as well as the challenges and limitations of the existing CFD approaches in predicting the performance of cyclones operating in such conditions are evaluated. Finally, an outlook on the prospects of CFD simulation of cyclone separators is provided.

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Section: E-l and Hybrid Model Simulationsmentioning

confidence: 99%

Section: E-l and Hybrid Model Simulationsmentioning

confidence: 99%

Section: Effect Of Solids Loadingmentioning

confidence: 99%

Section: Effect Of Solids Loadingmentioning

confidence: 99%

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CFD Modeling of Gas–Solid Cyclone Separators at Ambient and Elevated Temperatures

Nakhaei

Tian

et al. 2020

Processes

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“…The case showed that the rings promote winding flow. Pawel [10] studied numerical simulation of a dense solid particle flow inside a cyclone separator. The two-phase gas-solid particles flow was modeled using a hybrid Euler-Lagrange approach, which accounts for the four-way coupling between phases.…”

Section: Introductionmentioning

confidence: 99%

Detection of Gas-Solid Two-Phase Flow Based on CFD and Capacitance Method

et al. 2018

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Multiphase flow in annular channels is complex, particularly in the region where the flow direction abruptly changes between the inner pipe and the outer pipe, as the cases in horizontal drilling and pneumatic conveying. Simplified models and experience are still the main sources of information. First, to understand the process more deeply, Computational Fluid Dynamics (CFD) package Fluent is used to simulate the gas-solid flow in the horizontal and the inclined section of an annular pipe. Discrete Phase Model (DPM) is adopted to calculate the trajectories of solid particles of different sizes at different air velocities. Also, the Two-Fluid model is used to simulate the sand flow in the inclined section for the case of air flow stoppage, for which an experiment is also conducted to verify the CFD simulation. Simulation results reveal the behaviour of the solid particles showing the dispersed spatial distribution of small particles near the entrance. On the other hand, larger particles manifest a distinct sedimented flow pattern along the bottom of the pipe. The density distribution of the particles over a pipe cross section is demonstrated at a variety of air velocities. The results also show that the large airspeed tends to generate swirls near the outlet of the inner pipe. In addition, Electrical Capacitance Tomography (ECT) technology is used to reconstruct the spatial distribution of particles, and the cross-correlation algorithm to detect velocity. Both the distribution and the velocity measurement by electric sensors agree reasonably well with the CFD predictions. The details revealed by CFD simulation and the mutual-verification between CFD simulation and the ECT method of this study could be valuable for the industry in drilling process control and equipment development.

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Simulation of Pneumatic Conveying

McGlinchey¹

2023

Simulations in Bulk Solids Handling

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Numerical simulation of a dense solid particle flow inside a cyclone separator using the hybrid Euler–Lagrange approach

Cited by 58 publications

References 49 publications

CFD Modeling of Gas–Solid Cyclone Separators at Ambient and Elevated Temperatures

CFD Modeling of Gas–Solid Cyclone Separators at Ambient and Elevated Temperatures

Detection of Gas-Solid Two-Phase Flow Based on CFD and Capacitance Method

Simulation of Pneumatic Conveying

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