Surface particle motions in rotating cylinders: Validation and similarity for an industrial scale kiln

Demagh, Yassine; Moussa, Hocine Ben; Lachi, Mohammed; Noui, Samira; Bordja, Lyes

doi:10.1016/j.powtec.2012.03.002

Cited by 37 publications

(26 citation statements)

References 28 publications

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“…The OpenFOAM velocity vectors (Figure 10, left) show both the gas phase and the particle phase, while the Fluent velocity vectors (Figure 10, right) only show the particle phase (this is due to different features of the graphics processing procedures in the two software packages). The velocity vectors are qualitatively in agreement with results from previous studies [6,12]. (Figure 4), which appear after an increase in filling degree from 10 to 35 %.…”

Section: Simulation Studysupporting

confidence: 91%

“…[1][2][3][4][5][6][7][8][9][10] . The flow pattern depends on the degree of filling and the Froude number ( ).…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…A cement kiln is a typical example of a RC which has mass and energy transfer between the phases [5,6]. Six different flow patterns can be identified, depending on the degree of filling and the rotational speed; slipping, slumping, rolling, cascading, cataracting and centrifuging [2,7].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

CFD Study of Particle Flow Patterns in a Rotating Cylinder Applying OpenFOAM and Fluent

Dissanayake

Karunarathne

Lundberg

et al. 2017

Linköping Electronic Conference Proceedings

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A rotating cylinder (RC) is a common type of reactor used in the industry, the most typical example being a cement kiln. The particle flow pattern inside such a unit is necessary for the mass and energy transfer, and this flow pattern depends on the operational Froude number and the degree of filling. The main aim of this study is to compare the simulation results from OpenFOAM and Fluent applying a Eulerian multiphase flow modeling concept to study the behavior of dense particle gas mixtures under different operational conditions. Six different flow patterns are simulated, varying the degree of filling from 10 to 45 % and the Froude number from 0.0001 to 5. OpenFOAM is capable of producing results very close to those generated with Fluent, and both software appears to be suitable for simulating the RC dense particle flow using the Eulerian approach.

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Section: Simulation Studysupporting

confidence: 91%

“…[1][2][3][4][5][6][7][8][9][10] . The flow pattern depends on the degree of filling and the Froude number ( ).…”

Section: Theoretical Backgroundmentioning

confidence: 99%

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CFD Study of Particle Flow Patterns in a Rotating Cylinder Applying OpenFOAM and Fluent

Dissanayake

Karunarathne

Lundberg

et al. 2017

Linköping Electronic Conference Proceedings

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“…Most of these flow regimes have been studied (Boateng and Barr, 1997;Ding et al, 2001;Chou et al, 2010;Yada et al, 2010;Huang et al, 2012;Chou and Hsiau, 2012;Demagh et al, 2012;Santos et al, 2013;Dubé et al, 2013;Lee et al, 2013), although there are a restricted number of works dedicated to the transition phenomenon between the regimes (Henein et al, 1983a,b;Watanabe, 1999;Mellmann, 2001;Santomaso et al, 2003;Juarez et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Transition Phenomenon Investigation Between Different Flow Regimes in a Rotary Drum

Santos

Scatena

Duarte

et al. 2016

Braz. J. Chem. Eng.

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-Rotary drums can show different granular flow regimes each one with its own specific flow behavior, which increase the complexity in their study. The way particles move inside the rotary drum is directly related to the mass and energy transfer rates, and consequently to the process performance. Thus, an experimental investigation regarding the transition between different flow regimes inside a rotary drum was carried out in the present work. To the best of our knowledge, the hysteresis phenomenon was observed for the first time in the transition between cataracting-centrifuging regimes, which was shown to be dependent on the physical properties of the particles such as sphericity, density and particle-wall friction coefficient. A new expression for the centrifuging critical rotation speed was proposed in this work.

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“…Based on this method, in [5], the profiles of tangential velocities of the shear layer of the fill have been determined and the values have been compared with the experimental data of other authors. The velocity parameters of the shear layer have been described in [6] with the help of a numerical model of the kinetic flow theory of granular medium, taking into account frictional interaction and averaging principle.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

The rotating chamber granular fill shear layer flow simulation

Naumenko

Sivko

2017

EEJET

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Розглянуто задачу визначення усталеного граві-таційного руху зсувного шару зернистого заповнення циліндричної камери, що обертається навколо гори-зонтальної осі. Поведінку заповнення описано за допо-могою осереднених величин. Застосовано пластичну реологічну модель зернистого середовища. На основі розрахунку напружено-деформованого стану визначе-но розподіл зсувних швидкостей по нормалі до напряму течії шару. Виявлено залежності профілю швидкостей зсувного шару від кінематичного, геометричних та реологічних параметрів системи Ключові слова: зернисте заповнення, обертова камера, зсувний шар, гравітаційна течія, розподіл швидкостей Рассмотрена задача определения установившегося гравитационного движения сдвигового слоя зернисто-го заполнения цилиндрической камеры, вращающейся вокруг горизонтальной оси. Поведение заполнения опи-сано с помощью осредненных величин. Применена пла-стическая реологическая модель зернистой среды. На основе расчета напряженно-деформированного состо-яния определено распределение сдвиговых скоростей по нормали к направлению течения слоя. Выявлены зависимости профиля скоростей сдвигового слоя от кинематического, геометрических и реологических параметров системы Ключевые слова: зернистое заполнение, вращающа-яся камера, сдвиговый слой, гравитационное течение, распределение скоростей UDC 621.926.5 : 539.215

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Surface particle motions in rotating cylinders: Validation and similarity for an industrial scale kiln

Cited by 37 publications

References 28 publications

CFD Study of Particle Flow Patterns in a Rotating Cylinder Applying OpenFOAM and Fluent

CFD Study of Particle Flow Patterns in a Rotating Cylinder Applying OpenFOAM and Fluent

Transition Phenomenon Investigation Between Different Flow Regimes in a Rotary Drum

The rotating chamber granular fill shear layer flow simulation

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