Skew-Symmetric Splitting for Multiscale Gas Dynamics and MHD Turbulence Flows
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Scientific Computing"
DOI: 10.1007/s10915-020-01225-w
Abstract: The objective of this work is to improve nonlinear stability and to minimize aliasing error by applying high order central discretizations to skew-symmetric splitting forms of the inviscid flux derivative without added high order numerical… read more here.
Keywords: skew symmetric; turbulence; high order; symmetric splitting ... See more keywords
Global solution to initial boundary value problem for gas dynamics in thermal nonequilibrium
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Differential Equations"
DOI: 10.1016/j.jde.2018.04.019
Abstract: Abstract The global existence and long time behavior of smooth solutions to an initial boundary value problem for the system of thermal nonequilibrium gas dynamics are studied in this paper. read more here.
Keywords: initial boundary; value problem; boundary value; gas dynamics ... See more keywords
Generalized Riemann waves and their adjoinment through a shock wave
Sign Up to like & getrecommendations! Published in 2018 at "Mathematical Modelling of Natural Phenomena"
DOI: 10.1051/mmnp/2018027
Abstract: Generalized simple waves of the gas dynamics equations in Lagrangian and Eulerian descriptions are studied in the paper. As in the collision of a shock wave and a rarefaction wave, a flow becomes nonisentropic. Generalized… read more here.
Keywords: generalized simple; shock wave; gas dynamics; simple waves ... See more keywords
Nonlinear dispersive regularization of inviscid gas dynamics
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DOI: 10.1063/1.5133720
Abstract: Ideal gas dynamics can develop shock-like singularities with discontinuous density. Viscosity typically regularizes such singularities and leads to a shock structure. On the other hand, in 1d, singularities in the Hopf equation can be non-dissipatively… read more here.
Keywords: gas dynamics; gas; nonlinear dispersive; regularization ... See more keywords
The Riemann problem for the Chaplygin gas dynamics with a single-point heating source
Sign Up to like & getrecommendations! Published in 2024 at "Physics of Fluids"
DOI: 10.1063/5.0201935
Abstract: This paper is devoted to the Riemann solutions to the Chaplygin gas dynamics with a single-point heating source. To deal with Dirac measure source term, we transform this model into a system of conservation laws… read more here.
Keywords: chaplygin gas; solution; source; dynamics single ... See more keywords
Influence of gas dynamics on arc dynamics and the discharge power of a rotating gliding arc
Sign Up to like & getrecommendations! Published in 2019 at "Plasma Sources Science and Technology"
DOI: 10.1088/1361-6595/ab2169
Abstract: This work reports the design and characterization of a rotating gliding arc reactor (RGA) developed with novel electrode configuration. This RGA uses gas swirl discs having 'tangential gas entry ports/holes' (NH) to achieve arc rotation… read more here.
Keywords: gas; gliding arc; subagt; rotating gliding ... See more keywords
Fuzzy-fractional modeling and analysis of gas dynamics via extended He-Laplace-Carson algorithm
Sign Up to like & getrecommendations! Published in 2025 at "Physica Scripta"
DOI: 10.1088/1402-4896/adeaf5
Abstract: The primary objective of this study is to model, solve, and analyze fractional-order nonlinear gas dynamics using fuzzy logic. Triangular fuzzy numbers (TFNs) are employed to represent uncertainties in reaction and convection parameters, as well… read more here.
Keywords: laplace carson; carson algorithm; gas dynamics; gas ... See more keywords
Simulating gravitational motion, gas dynamics, and structure in the cosmos
Sign Up to like & getrecommendations! Published in 2023 at "American Journal of Physics"
DOI: 10.1119/5.0144906
Abstract: We provide introductory explanations and illustrations of the N-body hydrodynamics code Charm N-body GrAvity solver (ChaNGa). ChaNGa simulates the gravitational motion and gas dynamics of matter in space with the goal of modeling galactic and/or… read more here.
Keywords: gas dynamics; gravitational motion; motion gas; structure ... See more keywords
Group Analysis of the One-Dimensional Gas Dynamics Equations in Lagrangian Coordinates and Conservation Laws
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Applied Mechanics and Technical Physics"
DOI: 10.1134/s0021894420020054
Abstract: A group analysis of the second-order equation including the one-dimensional gas dynamics equations in Lagrangian coordinates as a particular case is performed. The use of Lagrangian coordinates makes it possible to consider the one-dimensional gas… read more here.
Keywords: dynamics equations; one dimensional; group; gas dynamics ... See more keywords
Supernova-Explosion Mechanism Involving Neutrinos
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Atomic Nuclei"
DOI: 10.1134/s106377881801009x
Abstract: A major part of the energy released upon the gravitational collapse of massive-star cores is carried away by neutrinos. Neutrinos play a crucial role in collapsing supernovae (SNe). At the present time, mathematical models of… read more here.
Keywords: mechanism; convection; role; type ... See more keywords
Difference Scheme with a Symmetry Analyzer for Equations of Gas Dynamics
Sign Up to like & getrecommendations! Published in 2020 at "Mathematical Models and Computer Simulations"
DOI: 10.1134/s2070048220020076
Abstract: Abstract The paper proposes a symmetry analyzer as an element of the computational algorithm for the numerical integration of two-dimensional equations of ideal gas dynamics. A symmetry analyzer is an algorithm that allows using grid… read more here.
Keywords: gas dynamics; difference scheme; symmetry analyzer; analyzer ... See more keywords