Applicability of the standard k–ε turbulence model to the dynamic simulation of bubble columns: Part I. Detailed numerical simulations

Sokolichin, A.; Eigenberger, Gerhart

doi:10.1016/s0009-2509(98)00420-5

Cited by 263 publications

(205 citation statements)

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“…Hu and Celik reported that the predicted mean quantities (such as mean liquid velocity field) were in good agreement with the experimental data of Sokolichin and Eigenberger [54], as shown in Figure 11, and further gave an accurate International Journal of Chemical Engineering prediction of the instantaneous flow features, including liquid velocity fluctuations and unsteady bubble dispersion pattern. Hu and Celik also studied the influence of the Smagorinsky constant and found that the constant for multiphase systems falls in a relatively smaller range than for single-phase flows.…”

Section: Hu and Celiksupporting

confidence: 67%

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: Hu and Celiksupporting

confidence: 67%

Large Eddy Simulation for Dispersed Bubbly Flows: A Review

Dhotre

Deen

Ničeno

et al. 2013

International Journal of Chemical Engineering

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“…Their results were proved by and Talvy et al (2007). Sokolichin and Eigenberger (1999) simulated a bubble column in two and three dimensions for laminar and turbulent models in unsteady state conditions. Their experimental results confirmed the turbulent character of flow structure.…”

Section: Introductionmentioning

confidence: 99%

Investigation of hydrodynamics and transition regime in an internal loop airlift reactor using CFD

Ghasemi

Hosseini

2012

Braz. J. Chem. Eng.

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-CFD modeling for an internal loop airlift reactor is developed for different superficial gas velocities, ranging from 0.015 to 0.073 m/s. Based on the presence of gas bubbles in the downcomer, three regimes can be generally classified as: no gas bubbles (I), stagnation of gas bubbles (II), and recirculation of gas bubbles into the riser (III). The aim of the study is to carefully investigate the regime transition from II to III by considering the gas distribution. In regime II, the CFD simulation results show that the gas holdup difference between the riser and the downcomer remains constant. Due to the transition from regime II to III, the gas holdup difference sharply increases and the ratio of gas holdup in the downcomer and riser changes between the two regimes. At a superficial gas velocity slightly lower than that of the transitional regime, a small amount of gas is dragged to the riser, while the behavior of the regime is similar to regime II. The computational results show that CFD can be used as an effective tool to provide information on the details of the transition regime in internal loop airlift reactors.

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“…That is more typical for turbulent flows. Hence, they performed extensive numerical calculations and conducted several experiments after which they concluded that turbulence models are more convenient to describe flow fields in bubble columns [3,43].…”

Section: Introductionmentioning

confidence: 99%