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Lattice Boltzmann method for miscible gases: A forcing-term approach

Article dans une revue avec comité de lecture
Auteur
VIENNE, Lucien
134975 Laboratoire de Dynamique des Fluides [DynFluid]
300351 Conservatoire National des Arts et Métiers [Cnam] [Cnam]
MARIÉ, Simon
134975 Laboratoire de Dynamique des Fluides [DynFluid]
300351 Conservatoire National des Arts et Métiers [Cnam] [Cnam]
GRASSO, Francesco
300351 Conservatoire National des Arts et Métiers [Cnam] [Cnam]
134975 Laboratoire de Dynamique des Fluides [DynFluid]

URI
http://hdl.handle.net/10985/19695
DOI
10.1103/physreve.100.023309
Date
2019
Journal
Physical Review E

Résumé

A lattice Boltzmann method for miscible gases is presented. In this model, the standard lattice Boltzmann method is employed for each species composing the mixture. Diffusion interaction among species is taken into account by means of a force derived from kinetic theory of gases. Transport coefficients expressions are recovered from the kinetic theory. Species with dissimilar molar masses are simulated by also introducing a force. Finally, mixing dynamics is recovered as shown in different applications: an equimolar counterdiffusion case, Loschmidt's tube experiment, and an opposed jets flow simulation. Since collision is not altered, the present method can easily be introduced in any other lattice Boltzmann algorithms.

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  • Dynamique des Fluides (DynFluid)

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Simulation of Viscous Fingering Instability by the Lattice Boltzmann Method 
    Communication avec acte
    VIENNE, Lucien; MARIE, Simon; GRASSO, Francesco (American Institute of Aeronautics and Astronautics, 2019)
    The viscous fingering instability is successfully simulated within a lattice Boltzmann framework. Each species of the mixture is governed by its own kinetic equation and a force takes into account the diffusion between ...
  • Early evolution of the compressible mixing layer issued from two turbulent streams 
    Article dans une revue avec comité de lecture
    PIROZZOLI, Sergio; BERNARDINI, Matteo; MARIÉ, Simon; GRASSO, Francesco (Cambridge University Press (CUP), 2015)
    Direct numerical simulation of the spatially developing mixing layer issuing from two turbulent streams past a splitter plate is carried out under mild compressibility conditions. The study mainly focuses on the early ...
  • Numerical Investigation of High‑Speed Turbulent Boundary Layers of Dense Gases 
    Article dans une revue avec comité de lecture
    PASSIATORE, Donatella; CINNELLA, Paola; GRASSO, Francesco; ccSCIACOVELLI, Luca; ccGLOERFELT, Xavier (Springer, 2020-03)
    High-speed turbulent boundary layers of a dense gas (PP11) and a perfect gas (air) over flat plates are investigated by means of direct numerical simulations and large eddy simulations. The thermodynamic conditions of the ...
  • Optimal transient growth in compressible turbulent boundary layers 
    Article dans une revue avec comité de lecture
    ALIZARD, Frédéric; PIROZZOLI, Sergio; BERNARDINI, Matteo; GRASSO, Francesco (Cambridge University Press (CUP), 2015)
    The structure of zero-pressure-gradient compressible turbulent boundary layers is analysed using the tools of optimal transient growth theory. The approach relies on the extension to compressible flows of the theoretical ...
  • CFD-driven symbolic identification of algebraic Reynolds-stress models 
    Article dans une revue avec comité de lecture
    ccBEN HASSAN SAIDI, Ismaïl; ccSCHMELZER, Martin; ccCINNELLA, Paola; GRASSO, Francesco (Elsevier Inc., 2022-02)
    Reynolds-stress models (EARSM) from high-fidelity data is developed building on the frozen-training SpaRTA algorithm of [1]. Corrections for the Reynolds stress tensor and the production of transported turbulent quantities ...

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