Consistent evaporation formulation for the phase-field lattice Boltzmann method

Makoto Sugimoto, Yuta Sawada, Masayuki Kaneda, Kazuhiko Suga

研究成果: ジャーナルへの寄稿学術論文査読

9 被引用数 (Scopus)


A consistent evaporation model is developed for the conservative Allen-Cahn-based phase-field lattice Boltzmann method that uses an appropriate source term to recover the advection-diffusion equation for the specific humidity. To evaluate the accuracy of the proposed scheme, simulations are conducted of a steady-state one-dimensional Stefan flow for a flat interface and a three-dimensional evaporating sessile droplet on a flat substrate for a curved interface. It is confirmed that the results for the evaporative mass flux of the Stefan flow agree well with those obtained from the analytical solution within a specific humidity range of 0.8 or less at the liquid-gas interface. For the sessile droplet case, the results for the dependence of the contact angle on the evaporative mass flux and its profile show good agreement with those obtained from the model of Hu and Larson [J. Phys. Chem. B 106, 1334 (2002)JPCBFK1520-610610.1021/jp0118322].

ジャーナルPhysical Review E
出版ステータス出版済み - 2021 5月


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