Phase separation of incompressible binary fluids with lattice Boltzmann methods
Phase separation of incompressible binary fluids with lattice Boltzmann methods
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DOI：
10.1016/j.physa.2003.09.040
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发表时间：
2003-09
影响因子：
3.3
通讯作者：
A. Xu;G. Gonnella;A. Lamura
中科院分区：
文献类型：
--
作者：
A. Xu;G. Gonnella;A. Lamura
我们引入了不可压缩二元混合物的晶格玻尔兹曼方法（LBM）的新版本，其中总密度波动被抑制。作为对改进算法的检验，我们考虑了二维二元混合物从无序态淬火到共存区的相分离问题。我们发现LBM的稳定性有了很大的提高。对密度波动的控制和运行较长时间模拟的可能性使得对生长指数的评估更加精确。
We introduce new versions of lattice Boltzmann methods (LBM) for incompressible binary mixtures where fluctuations of total density are inhibited. As a test for the improved algorithms we consider the problem of phase separation of two-dimensional binary mixtures quenched from a disordered state into the coexistence region. We find that the stability properties of LBM are greatly improved. The control of density fluctuations and the possibility of running longer simulations allow a more precise evaluation of the growth exponent.