| CO2-乙醇体系中界面对流的混合格子Boltzmann方法三维模拟及实验验证（英文） |
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| 引用本文： | 陈炜,陈淑勇,袁希钢,张会书,余国琮.CO2-乙醇体系中界面对流的混合格子Boltzmann方法三维模拟及实验验证（英文）[J].中国化学工程学报,2015,23(2):356-365. |
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| 作者姓名： | 陈炜 陈淑勇 袁希钢 张会书 余国琮 |
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| 作者单位： | State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China(20736005) |
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| 摘 要： | By using a hybrid lattice-Boltzmann–finite-difference method (hybrid LBM–FDM method), three-dimensional simulations of solutal interfacial convection were conducted for the process of CO2 absorption into ethanol. A self-renewal interface model is adopted as an interfacial perturbation model. The simulation results revealed some three-dimensional features of the induced interfacial convection, such as the development of diverging cellular flow and Rayleigh plume-like convection in liquid phase. The concentration distribution of the simulation result is validated and found to be in wel agreement with the Schlieren visualization results qualitatively. Addi-tionally, the mass transfer enhancements by interfacial convection were investigated via both simulation and experiment for the absorption process, and the mass transfer is shown to be enhanced by the interfacial convec-tion by about two-fold comparing with that by diffusion.
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| 关 键 词： | Hybrid LBM-FDM Solutal interfacial mass transfer Interfacial convection Mass transfer rate Schlieren technique |
| 收稿时间： | 2013-07-20 |
Three-dimensional simulation of interfacial convection in CO2-ethanol system by hybrid lattice Boltzmann method with experimental validation☆ |
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| Wei Chen,Shuyong Chen,Xigang Yuan,Huishu Zhang,Kuotsung Yu.Three-dimensional simulation of interfacial convection in CO2-ethanol system by hybrid lattice Boltzmann method with experimental validation☆[J].Chinese Journal of Chemical Engineering,2015,23(2):356-365. |
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| Authors: | Wei Chen Shuyong Chen Xigang Yuan Huishu Zhang Kuotsung Yu |
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| Affiliation: | State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | By using a hybrid lattice-Boltzmann–finite-difference method (hybrid LBM–FDM method), three-dimensional simulations of solutal interfacial convection were conducted for the process of CO2 absorption into ethanol. A self-renewal interface model is adopted as an interfacial perturbation model. The simulation results revealed some three-dimensional features of the induced interfacial convection, such as the development of diverging cellular flow and Rayleigh plume-like convection in liquid phase. The concentration distribution of the simulation result is validated and found to be in wel agreement with the Schlieren visualization results qualitatively. Addi-tionally, the mass transfer enhancements by interfacial convection were investigated via both simulation and experiment for the absorption process, and the mass transfer is shown to be enhanced by the interfacial convec-tion by about two-fold comparing with that by diffusion. |
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| Keywords: | Hybrid LBM-FDM Solutal interfacial mass transfer Interfacial convection Mass transfer rate Schlieren technique |
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