Characterization of Rayleigh Convection in Interfacial Mass Transfer by Lattice Boltzmann Simulation and Experimental Verification

付博; 袁希钢; 刘伯潭; 陈淑勇; 张会书; 曾爱武; 余国琮

doi:10.1016/S1004-9541(11)60064-5

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Characterization of Rayleigh Convection in Interfacial Mass Transfer by Lattice Boltzmann Simulation and Experimental Verification

Updated：2026-01-06

- Characterization of Rayleigh Convection in Interfacial Mass Transfer by Lattice Boltzmann Simulation and Experimental Verification
- Characterization of Rayleigh Convection in Interfacial Mass Transfer by Lattice Boltzmann Simulation and Experimental Verification
- 中国化学工程学报（英文版） 2011年19卷第5期页码：845-854
- Affiliations：
  
  State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300072
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(11)60064-5
  中图分类号：
- 纸质出版：2011
- Accepted：
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付博, 袁希钢, 刘伯潭, 等. Characterization of Rayleigh Convection in Interfacial Mass Transfer by Lattice Boltzmann Simulation and Experimental Verification[J]. 中国化学工程学报（英文版）, 2011,19(5):845-854.

FU Bo, YUAN Xigang, LIU Botan, CHEN Shuyong, ZHANG Huishu, ZENG Aiwu, YU Guocong. Characterization of Rayleigh Convection in Interfacial Mass Transfer by Lattice Boltzmann Simulation and Experimental Verification[J]. , 2011, 19(5): 845-854.
付博, 袁希钢, 刘伯潭, 等. Characterization of Rayleigh Convection in Interfacial Mass Transfer by Lattice Boltzmann Simulation and Experimental Verification[J]. 中国化学工程学报（英文版）, 2011,19(5):845-854. DOI： 10.1016/S1004-9541(11)60064-5.

FU Bo, YUAN Xigang, LIU Botan, CHEN Shuyong, ZHANG Huishu, ZENG Aiwu, YU Guocong. Characterization of Rayleigh Convection in Interfacial Mass Transfer by Lattice Boltzmann Simulation and Experimental Verification[J]. , 2011, 19(5): 845-854. DOI： 10.1016/S1004-9541(11)60064-5.

摘要

Abstract

Concentration gradient induced Rayleigh convection can influence effectively interfacial mass transfer processes

but the convection phenomena are known as mesoscopic and complex. In order to investigate this phenomenon

a two-equation Lattice Boltzmann Method (LBM) is proposed to simulate the velocity and the concentra-tion distributions of Rayleigh convection generated in the CO

absorption into ethanol liquid. The simulated results on velocity distributions are experimentally verified by PIV (particle image velocimetry technique) measurements. In order to simplify the analysis

the convection in the simulation as well as in the experiment

the Rayleigh convection was manipulated into a single down flow pattern. The simulated results show that the concentration contours agree qualitatively with the schlieren images in the literature. The experimental and simulated results show that the Rayleigh convection under investigation is dominated by the flow in the downward direction and impels exchange of the liquid between the interfacial vicinity and the liquid bulk promoting the renewal of interfacial liquid

and hence enhances mass transfer. The comparison between the simulated and experimental results demonstrated that the proposed LBM is a promising alternative for simulating mass transfer induced Rayleigh convection.

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