Hydrodynamic effects on phase separation of binary mixtures with reversible chemical reaction

2003 ◽  
Vol 118 (21) ◽  
pp. 9830-9837 ◽  
Author(s):  
Yanli Huo ◽  
Xiuli Jiang ◽  
Hongdong Zhang ◽  
Yuliang Yang
Keyword(s):  
Phase Separation ◽  
Binary Mixtures ◽  
Chemical Reaction ◽  
Reversible Chemical Reaction ◽  
Hydrodynamic Effects

Lattice Boltzmann Method for Simulating Phase Separation of Sheared Binary Fluids with Reversible Chemical Reaction

2017 ◽  
Vol 10 (3) ◽  
pp. 656-670 ◽  
Author(s):  
Xiaoyu Wang ◽  
Jie Ouyang ◽  
Heng Yang ◽  
Jianwei Liu
Keyword(s):  
Phase Separation ◽  
Lattice Boltzmann Method ◽  
Chemical Reaction ◽  
Lattice Boltzmann ◽  
Finite Size ◽  
Reaction Rates ◽  
Growth Exponent ◽  
Binary Fluids ◽  
Reversible Chemical Reaction ◽  
Boltzmann Method

AbstractA lattice Boltzmann method is utilized for governing equations which control phase separation of binary fluids with reversible chemical reaction in presence of a shear flow in this paper. We first present the morphology modeling of sheared binary fluids with reversible chemical reaction. We then validate the model by taking the unsheared binary fluids as an example. It is found that the results fit well with the references. The paper shows structures of the sheared system and gives the detailed analysis for the morphology of sheared binary fluids with reversible chemical reaction. The phase separation of the domain structures with different chemical reaction rates is discussed. Through simulations of the sheared binary fluids, two interesting phenomena are observed, which do not exist in a binary mixture without reversible chemical reaction. One is that the same results appear in both low and high viscosity, and the other is that the domain growth exponent with both low and high viscosities presents wave due to the competition of the viscosity and phase separation. In addition, we find that the finite size effects resulting in the growth exponent decreasing appear faster than that of the unsheared blend at a large time when the size of domains is comparable with the lattice size.

Phase separation of binary mixtures induced by soft centrifugal fields

2021 ◽  
Author(s):  
Thomas Zemb ◽  
Rose Rosenberg ◽  
Stjepan Marčelja ◽  
Dirk Haffke ◽  
Jean-François Dufrêche ◽  
...  
Keyword(s):  
Phase Separation ◽  
Critical Point ◽  
Binary Mixtures ◽  
Liquid Mixture ◽  
Model System ◽  
Binary Liquid Mixture ◽  
Miscibility Gap ◽  
Critical Fluctuations ◽  
Binary Liquid

We use the model system ethanol–dodecane to demonstrate that giant critical fluctuations induced by easily accessible weak centrifugal fields as low as 2000g can be observed above the miscibility gap even far from the critical point of a binary liquid mixture.

scholarly journals Mass transfer with complex reversible chemical reactions—I. Single reversible chemical reaction

1989 ◽  
Vol 44 (10) ◽  
pp. 2295-2310 ◽  
Author(s):  
G.F. Versteeg ◽  
J.A.M. Kuipers ◽  
F.P.H. Van Beckum ◽  
W.P.M. Van Swaaij
Keyword(s):  
Mass Transfer ◽  
Chemical Reactions ◽  
Chemical Reaction ◽  
Reversible Chemical Reaction
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