Numerical modeling of reactive bubbly flows based on Euler-Lagrange approach

Huang, Zhengzong; Yan, Hongjie; Liu, Liu; Gong, Hao; Zhou, Ping

doi:10.1016/j.ces.2021.116640

Cited by 10 publications

(9 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Frank et al proposed to remove the dependence of pipe diameter and define the coefficient as the function of the Eotvos number, damping coefficient, and cutoff coefficient. The model by Frank et al was applied in CO 2 absorption in NaOH in a rectangular bubble column. , The wall lubrication force as well as coefficients are described by eqs –. F⃗ W = prefix− C W ρ l V b false| ( v⃗ − u⃗ ) · n⃗ z false| 2 n⃗ W C W L = { true e − 0.933 Eo + 0.179 1 ≤ Eo ≤ 5 0.00599 Eo − 0.0187 5 < Eo ≤ 33 0.179 Eo > 33 C W G = max { 0 , ⁡ 1 C W D · 1 − y W / C W C d ...…”

Section: Two/three Phase Flowmentioning

confidence: 99%

“…An investigation of different models for the drag force has been conducted. In general, the model proposed by Tomiyama et al attracts wide interest in the applications of gas–liquid flow ,,,− or gas–liquid–solid flow in a gas–liquid bubbling reactor. Equations and correlate the drag force with relative velocity between gas and liquid, liquid density, bubble diameter, and volume fraction of gas phase.…”

Section: Two/three Phase Flowmentioning

confidence: 99%

“…The model by Frank et al was applied in CO 2 absorption in NaOH in a rectangular bubble column. 5, 260 The wall lubrication force as well as coefficients are described by eqs 32−35.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Computational Fluid Dynamics Based Modeling of Gas Absorption Process: A State-of-the-Art Review

Liu,

Wang,

Cai

et al. 2024

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The effective removal of gas phase species relies on effective gas liquid hydrodynamic contact coupling with fast chemical reaction rates. To promote mass transfer rate and the development of reagents, computational fluid dynamic modeling has long been recognized as an effective methodology for the quantification of physical and chemical parameters. The simulation of the gas liquid process involves the coupling of models including multiphase flow, turbulence, interfacial forces, mass transfer, and chemical reactions. The selection of suitable models according to practical applications has been challenging. In terms of multiphase flow, volume of fraction, Euler−Euler, and Euler−Lagrange approaches are discussed. With regard to turbulence, direct numerical simulation, large eddy simulation, and Reynolds averaged Navier−Stokes approach are compared. With respect to interfacial forces, the dominance of drag, lift, virtual mass, wall lubrication, and turbulent dispersion forces for different situations are obtained. In terms of mass transfer, the development and applications of film model, dimensionless analysis, penetration model, and surface renewal model are discussed. Different methodologies to enhance mass transfer include improvement of equipment structure, addition of nanofluid, and exposure to an energy field are summarized. To accelerate the computational process, four methods including the space−time conservation element and solution element model, compartmental model, reduction in dimension, and multiscale approach are discussed. This paper intends to provide a thorough review on the applications of different models to different situations and, in particular, to reveal the restrictions of different models. Overall, this study lays the foundation for future studies on the optimization of scrubbers for large scale practical applications. It also allows a deeper understanding of the interactions of fluid dynamics, mass transfer, and chemical reactions.

show abstract

Section: Two/three Phase Flowmentioning

confidence: 99%

Section: Two/three Phase Flowmentioning

confidence: 99%

See 1 more Smart Citation

Computational Fluid Dynamics Based Modeling of Gas Absorption Process: A State-of-the-Art Review

Liu,

Wang,

Cai

et al. 2024

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…Unlike the Euler-Euler model, the Euler-Lagrange model employs a Lagrange approach to simulate the motion of droplets. Trajectories of individual droplets, as well as collisions between multiple droplets, can be easily traced [27] . Wen et al [28] used the Euler-Lagrange model to numerically calculate the natural gas flow field and particle separation characteristics in a supersonic cyclone.…”

Section: Introductionmentioning

confidence: 99%

A modified Euler-Lagrange-Euler approach for modelling homogeneous and heterogeneous condensing droplets and films in supersonic flows

Ding

Yang

Wen

2023

International Journal of Heat and Mass Transfer

View full text Add to dashboard Cite

“…The most commonly used mass transfer models in CFD simulation of gas–liquid mass transfer include Higbie’s slip penetration model, Lamont’s eddy cell model, and empirical models of Sherwood ( Sh ) number. Among them, the empirical model of Sh number is mainly used for the absorption of CO 2 in NaOH solution, ,− but Darmana and Chen concluded that the empirical models of Sh number are not able to simulate the mass transfer coefficient accurately. As to the slip penetration model and the eddy cell model, due to their simple expressions, few adjustable parameters, and wide versatility, many researchers ,,− use these two mass transfer models for CFD simulation.…”

Section: Introductionmentioning

confidence: 99%

Experimental and CFD Simulation Study of the Air-Blowing Process of Iodine in Nitric Acid Solution

Tang

Cui

Zhang

et al. 2022

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

In this study, the air-blowing process of iodine in nitric acid solution was studied through experiments and computational fluid dynamic (CFD) simulation. The impact of superficial gas velocity and nitric acid concentration on the gas holdup and bubble distribution during bubbling is tested. population balance model (PBM) and interfacial area concentration model (IACM) models are selected to simulate the bubble coalescence and breakup, and the slip penetration model is used to simulate the mass transfer process. The experimental results show that the size of the bubbles in the nitric acid solution is smaller than that in the water due to Gibbs–Marangoni effect and electrical repulsive forces, resulting in a larger gas holdup and a wider bubble distribution. When the concentration of nitric acid solution exceeds 1 mol/L, the effect of nitric acid concentration variation on gas–liquid-phase hydrodynamics becomes less significant. The CFD simulation results showed that the PBM–(EMMS)Luo–Luo model can simulate the bubble coalescence and breakup in water, while the IACM–Hibiki–Ishii model is more suitable for those in nitric acid solution. In addition, it is found that the “slip penetration” model is suitable for the mass transfer calculation in the air-blowing process of iodine.

show abstract

Numerical modeling of reactive bubbly flows based on Euler-Lagrange approach

Cited by 10 publications

References 32 publications

Computational Fluid Dynamics Based Modeling of Gas Absorption Process: A State-of-the-Art Review

Computational Fluid Dynamics Based Modeling of Gas Absorption Process: A State-of-the-Art Review

A modified Euler-Lagrange-Euler approach for modelling homogeneous and heterogeneous condensing droplets and films in supersonic flows

Experimental and CFD Simulation Study of the Air-Blowing Process of Iodine in Nitric Acid Solution

Contact Info

Product

Resources

About