Geodesic
Computational fluctuating fluid dynamics
ESAIM: Mathematical Modelling and Numerical Analysis , Special Issue on Probabilistic methods and their applications, Tome 44 (2010) no. 5, pp. 1085-1105

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This paper describes the extension of a recently developed numerical solver for the Landau-Lifshitz Navier-Stokes (LLNS) equations to binary mixtures in three dimensions. The LLNS equations incorporate thermal fluctuations into macroscopic hydrodynamics by using white-noise fluxes. These stochastic PDEs are more complicated in three dimensions due to the tensorial form of the correlations for the stochastic fluxes and in mixtures due to couplings of energy and concentration fluxes (e.g., Soret effect). We present various numerical tests of systems in and out of equilibrium, including time-dependent systems, and demonstrate good agreement with theoretical results and molecular simulation.

DOI : 10.1051/m2an/2010053
Classification : 35R60, 60H10, 60H35, 82C31, 82C80
Keywords: fluctuating hydrodynamics, Landau-Lifshitz-Navier-Stokes equations, stochastic partial differential equations, finite difference methods, binary gas mixtures 
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     author = {Bell, John B. and Garcia, Alejandro L. and Williams, Sarah A.},
     title = {Computational fluctuating fluid dynamics},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {1085--1105},
     publisher = {EDP-Sciences},
     volume = {44},
     number = {5},
     year = {2010},
     doi = {10.1051/m2an/2010053},
     mrnumber = {2731404},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/m2an/2010053/}
}
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Bell, John B.; Garcia, Alejandro L.; Williams, Sarah A. Computational fluctuating fluid dynamics. ESAIM: Mathematical Modelling and Numerical Analysis , Special Issue on Probabilistic methods and their applications, Tome 44 (2010) no. 5, pp. 1085-1105. doi: 10.1051/m2an/2010053

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