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- W3098202067 abstract "We further develop a thermal LB model for multiphase flows. In the improved model, we propose to use the FFT scheme to calculate both the convection term and external force term. The usage of FFT scheme is detailed and analyzed. By using the FFT algorithm spatiotemporal discretization errors are decreased dramatically and the conservation of total energy is much better preserved. A direct consequence of the improvement is that the unphysical spurious velocities at the interfacial regions can be damped to neglectable scale. Together with the better conservation of total energy, the more accurate flow velocities lead to the more accurate temperature field which determines the dynamical and final states of the system. With the new model, the phase diagram of the liquid-vapor system obtained from simulation is more consistent with that from theoretical calculation. Very sharp interfaces can be achieved. The accuracy of simulation results are also verified by the Laplace law. The FFT scheme can be easily applied to other models for multiphase flows." @default.
- W3098202067 created "2020-11-23" @default.
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- W3098202067 date "2012-04-01" @default.
- W3098202067 modified "2023-09-30" @default.
- W3098202067 title "FFT-LB Modeling of Thermal Liquid-Vapor System" @default.
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- W3098202067 doi "https://doi.org/10.1088/0253-6102/57/4/24" @default.
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