Phase-field lattice Boltzmann method for the simulation of gas-liquid mass transfer
Phase-field lattice Boltzmann method for the simulation of gas-liquid mass transfer
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DOI：
10.1016/j.ces.2022.117539
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发表时间：
2022-02
影响因子：
4.7
通讯作者：
Zhikai Tan;Hong-jie Yan;Rongzong Huang;Liu Liu-Liu;Qing Li
中科院分区：
文献类型：
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作者：
Zhikai Tan;Hong-jie Yan;Rongzong Huang;Liu Liu-Liu;Qing Li
目前的工作建立了一种格子玻尔兹曼（LB）方法来模拟气液传质过程。在这项工作中，流场通过 Fakhari 等人提出的保守相场方法求解。 (2016)，其中包含两个 LB 方程来跟踪界面并计算压力分布。浓度场以及亨利定律描述的界面上的浓度跳跃是通过 LB 方程通过连续物质转移方法实现的。为了耦合这两种方法，在静态和移动界面的情况下导出了相场方程的源项。进行了四个包含直界面或曲线界面的稳态和瞬态气液传质过程的测试案例来验证所提出的方法。结果表明，该方法能够描述气液传质过程中传质系数的演变。
The present work establishes a lattice Boltzmann (LB) method to simulate the gas-liquid mass transfer process. In this work, the flow field is solved by the conservative phase-field method proposed by Fakhari et al. (2016), which contains two LB equations to track the interface and calculate the pressure distribution. The concentration field, together with the concentration jump across the interface described by Henry’s law, is implemented by the continuous species transfer method through a LB equation. To couple these two methods, a source term for the phase-field equation is derived in the cases of static and moving interface. Four test cases containing both the steady and transient gas-liquid mass transfer processes with straight or curved interfaces are conducted to validate the proposed method. The results show that the present method is competent to describe the evolution of mass transfer coefficient in the gas-liquid mass transfer processes.