Growth kinetics in multicomponent fluids |
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| Authors: | Shiyi Chen Turab Lookman |
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| Institution: | (1) IBM Research Division, T.J. Watson Research Center, 10598 Yorktown Heights, New York;(2) Theoretical Division and Center for Nonlinear Studies, Los Alamos National Laboratory, 87545 Los Alamos, New Mexico;(3) Department of Applied Mathematics, University of Western Ontario, N6A 5B7 London, Ontario, Canada |
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| Abstract: | The hydrodynamic effects on the late-stage kinetics in spinodal decomposition of multicomponent fluids are examined using a lattice Boltzmann scheme with stochastic fluctuations in the fluid and at the interface. In two dimensions, the three- and four-component immiscible fluid mixture (with a 10242 lattice) behaves like an off-critical binary fluid with an estimated domain growth oft
0.4±0.03 rather thant
1/3 as previously estimated, showing the significant influence of hydrodynamics. In three dimensions (with a 2563 lattice), we estimate the growth ast
0.96±0.05 for both critical and off-critical quenches, in agreement with phenomenological theory. |
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| Keywords: | Lattice Boltzmann method growth kinetics multicomponent fluids |
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