Abstract
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.
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