Results 241 to 250 of about 15,571 (294)

Macroscopic equations for rarefied gas dynamics

Physics Letters A, 2000
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Chen, Xinzhong, Rao, Hongling, Spiegel, Edward A.   +2 more
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Numerical investigations in rarefied gas dynamics

USSR Computational Mathematics and Mathematical Physics, 1980
Abstract A SURVEY, compiled in the Laboratory of the Theory of Transport Processes of the Computing Centre of the Academy of Sciences of the USSR, of papers on numerical methods of solving the kinetic equations for a neural gas is presented. THe main aspects of 15 years of the scientific activity of a small research group are briefly elucidated.
Rykov, V. A., Cheremisin, F. G., Shakov, E. M.   +2 more
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Dispersion Relations in Rarefied Gas Dynamics

The Physics of Fluids, 1963
The one-dimensional initial-value problem of a monatomic single component gas is considered. Using the linearized Boltzmann equation the dispersion relation is studied. In addition to the usual gas-dynamic sound waves, one finds an infinity of decaying propagating waves. The phenomenon exhibits itself as a sequence of epochs, the last state of which is
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Numerical Methods for Rarefied Gas Dynamics

1995
Numerical methods for solving the gas dynamic Boltzmann equation are of key importance because in general analytic solutions can not be found. Only in special cases such as in the fluid dynamic or free molecular flow limits for specific geometries and boundary conditions are analytic solutions (or approximate solutions) known [15].
Alfred Kersch, William J. Morokoff
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Integral methods in rarefied gasdynamics

Zeitschrift für angewandte Mathematik und Physik ZAMP, 1977
The question of convergency in integral methods for rarefied gasdynamics is examined through the example of low-speed flow over a sphere. The four-moment solution and the six-moment solution both compare favorably with experimental data for drag and heat transfer over the entire range of gas density. Discrepancy between the two solutions show a maximum
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RESEARCH ON RAREFIED GAS DYNAMICS AND PLASMA DYNAMICS

1962
Abstract : Research activities in the field of rarefied gasdynamics during the period September 1960 to August 1962 are reported in summary. Most of these constitute continuation of work reported previously, particularly in the experimental studies of rarefied gasdynamics and the attendant development of equipment experimental tools.
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Physics-informed neural networks for rarefied-gas dynamics: Thermal creep flow in the Bhatnagar–Gross–Krook approximation

Physics of Fluids, 2021
Mario de Florio, Enrico Schiassi, Barry D Ganapol   +2 more
exaly  

On some stochastic models of rarefied gas dynamics

USSR Computational Mathematics and Mathematical Physics, 1989
Abstract Simulation algorithms for the Boltzmann equation are constructed using stochastic equations in the Poisson measure. The algorithms do not require approximating the kernel of the collision integral by a step function.
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Boltzmann Equation and Rarefied Gas Dynamics

1985
A survey of the present state of the art in theoretical rarefied gas dynamics is presented.
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Rarefied Gas Dynamics

2022
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