Large eddy simulation of a bubble column using dynamic sub-grid scale model

Dhotre, M.T.; Ničeno, Bojan; Smith, Brian L.

doi:10.1016/j.cej.2007.04.016

Cited by 92 publications

(67 citation statements)

References 31 publications

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“…It was thought that in a case in which the bubbles actually drive the turbulence (via buoyancy and/or added mass forces), the situation would be different. However, in subsequent studies, similar observations were made in bubble plumes simulated by Deen et al [19], Dhotre et al [20], Ničeno et al [9]. The second approach for the modelling of BIT allows for the advective and diffusive transport of turbulent kinetic energy.…”

Section: Effect Of Bubble-induced Turbulence (Bit)mentioning

confidence: 73%

“…The value of used in gas-liquid flows varies from that of single phase flow and is in the range of 0.08 to 0.12 [11,20,24,25]. The lower range of value, compared to single phase, could be attributed to the interphase coupling term, which acts as a form of SGS model and can make contribution to the turbulent kinetic energy dissipation.…”

Section: Smagorinskymentioning

confidence: 99%

“…Finally, they concluded that LES can be effectively used for the study of the flow structures and instantaneous flow profiles. [20]. Dhotre et al [20] reported LES with an E-E approach for a gas-liquid flow in a square crosssectional bubble column.…”

Section: Zhang Et Almentioning

confidence: 99%

“…[20]. Dhotre et al [20] reported LES with an E-E approach for a gas-liquid flow in a square crosssectional bubble column. They studied the influence of SGS models: Smagorinky and Dynamic models of Germano et al [28].…”

Section: Zhang Et Almentioning

confidence: 99%

“…[20]. It is mainly because of the acceleration and deceleration effects are restricted to small end regions of the column.…”

Section: Interfacial Forcesmentioning

confidence: 99%

See 4 more Smart Citations

Large Eddy Simulation for Dispersed Bubbly Flows: A Review

Dhotre

Deen

Ničeno

et al. 2013

International Journal of Chemical Engineering

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Large eddy simulations (LES) of dispersed gas-liquid flows for the prediction of flow patterns and its applications have been reviewed. The published literature in the last ten years has been analysed on a coherent basis, and the present status has been brought out for the LES Euler-Euler and Euler-Lagrange approaches. Finally, recommendations for the use of LES in dispersed gas liquid flows have been made.

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Section: Effect Of Bubble-induced Turbulence (Bit)mentioning

confidence: 73%

Section: Smagorinskymentioning

confidence: 99%

Section: Zhang Et Almentioning

confidence: 99%

Section: Zhang Et Almentioning

confidence: 99%

“…[20]. It is mainly because of the acceleration and deceleration effects are restricted to small end regions of the column.…”

Section: Interfacial Forcesmentioning

confidence: 99%

See 3 more Smart Citations

Large Eddy Simulation for Dispersed Bubbly Flows: A Review

Dhotre

Deen

Ničeno

et al. 2013

International Journal of Chemical Engineering

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Numerical Investigation of Three‐Dimensional Bubble Column Flows: A Detached Eddy Simulation Approach

Masood¹,

Delgado²

2014

Chem Eng & Technol

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Numerical simulations were performed employing detached eddy simulation (DES) in a three‐dimensional transient Euler‐Euler framework for bubble columns, and all the computational fluid dynamics results were compared with a k‐ϵ model and available experimental data. The numerical results are in good agreement with the experiments in predicting the time‐averaged axial velocity and turbulent kinetic energy profiles. The flow‐resolving capabilities of the DES model are highlighted, and it is shown that the DES turbulence model can be efficiently used for simulating flow field and turbulent quantities in the case of bubble columns.

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Numerical Simulation of Interfacial Closures for 3D Bubble Column Flows

Masood¹,

Jovičić²,

Delgado³

2015

Chem Eng & Technol

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Numerical investigation of flow hydrodynamics in a square cross‐sectioned bubble column was conducted in a transient Euler‐Euler environment by applying the simulation tool Ansys CFX 14.0. The influence of the drag coefficient (CD) was investigated and the results were also compared with drag force models. Furthermore, three different lift force models and a defined lift coefficient were studied. All results were compared with the available experimental data. All simulations were carried out for a single‐hole sparger with given aspect ratio (H/D) and superficial gas velocity.

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Large eddy simulation of a bubble column using dynamic sub-grid scale model

Cited by 92 publications

References 31 publications

Large Eddy Simulation for Dispersed Bubbly Flows: A Review

Large Eddy Simulation for Dispersed Bubbly Flows: A Review

Numerical Investigation of Three‐Dimensional Bubble Column Flows: A Detached Eddy Simulation Approach

Numerical Simulation of Interfacial Closures for 3D Bubble Column Flows

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