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Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-14824-9
Abstract: We propose a multi-component discrete Boltzmann model (DBM) for premixed, nonpremixed, or partially premixed nonequilibrium reactive flows. This model is suitable for both subsonic and supersonic flows with or without chemical reaction and/or external force.…
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Keywords:
nonequilibrium;
multi component;
boltzmann;
model ... See more keywords
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Published in 2021 at "Physics of Fluids"
DOI: 10.1063/5.0041636
Abstract: Simulations of the discrete Boltzmann Bhatnagar–Gross–Krook equation are an important tool for understanding fluid dynamics in non-continuum regimes. Here, we introduce a discontinuous Galerkin finite element method for spatial discretization of the discrete Boltzmann equation…
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Keywords:
discontinuous galerkin;
galerkin finite;
method;
high knudsen ... See more keywords
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Published in 2021 at "AIP Advances"
DOI: 10.1063/5.0047480
Abstract: Based on the kinetic theory, a three-dimensional multiple-relaxation-time discrete Boltzmann model (DBM) is proposed for nonequilibrium compressible reactive flows where both the Prandtl number and specific heat ratio are freely adjustable. There are 30 kinetic…
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Keywords:
three dimensional;
reactive flows;
nonequilibrium;
model ... See more keywords
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Published in 2021 at "Physical review. E"
DOI: 10.1103/physreve.103.013305
Abstract: A multiple-relaxation-time discrete Boltzmann model (DBM) is proposed for multicomponent mixtures, where compressible, hydrodynamic, and thermodynamic nonequilibrium effects are taken into account. It allows the specific heat ratio and the Prandtl number to be adjustable,…
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Keywords:
relaxation time;
discrete boltzmann;
time discrete;
nonequilibrium ... See more keywords
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Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.035101
Abstract: The thermodynamic nonequilibrium (TNE) effects in a coalescence process of two initially static bubbles under thermal conditions are investigated by a discrete Boltzmann model. The spatial distributions of the typical nonequilibrium quantity, i.e., nonorganized momentum…
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Keywords:
thermodynamic nonequilibrium;
bubble coalescence;
discrete boltzmann;
component nomfs ... See more keywords
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Published in 2018 at "Physical Review E"
DOI: 10.1103/physreve.97.053312
Abstract: We present a general framework for constructing trans-scale discrete Boltzmann models (DBMs) for high-speed compressible flows ranging from continuum to transition regime. This is achieved by designing a higher-order discrete equilibrium distribution function that satisfies…
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Keywords:
trans scale;
speed compressible;
tne;
discrete boltzmann ... See more keywords
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Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science"
DOI: 10.1177/09544062221096254
Abstract: A Discrete Boltzmann Model(DBM) based on the Shakhov model for detonation is proposed. Compared with the DBM based on the Bhatnagar–Gross–Krook (BGK) model, the current model has a flexible Prandtl numbers and consequently can be…
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Keywords:
detonation;
number;
discrete boltzmann;
based shakhov ... See more keywords