The Shock Wave Structure in One-component Gas and in Binary Gas Mixture PDF Download

Author: Magdalena Bratos
Publisher:
ISBN:
Category :
Languages : en
Pages : 82

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Author: W. P. Walters
Publisher:
ISBN:
Category :
Languages : en
Pages : 55

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Book Description
The shock wave structure for a binary mixture of monatomic, perfect, chemically inert gases has been considered by numerous investigators. The authors present in the report the numerical solutions of the v(x) squared - moment equation for a Mott-Smith shock in a Maxwellian gas. The solutions are valid for any mass ratio and Mach number.

Author: Huon Li
Publisher:
ISBN:
Category : Differential equations
Languages : en
Pages : 132

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The multi-component continuous approach for the investigation of the gasdynamics of a plasma is presented. More information about the flow properties of a plasma can be obtained than from the classical magnetohydrodynamic approach. Also, the resulting equations appear to be more easily solved than the Blotzmann equation of classical kinetic theory. The basic macroscopic conservation equations for a non-reacting multi-component plasma are presented. The fluid properties of each component are referred to the mean velocity of that component. Therefore, no limitations are placed on the magnitude of the diffusion velocities. The effects of electric and magnetic fields are included. The equations for a two-component mixture are used to study the structure of a shock wave in a fully-ionized hydrogen gas. It is assumed that the momentum exchange and energy exchange between the ions and electrons are important because of the strong Coulomb forces present. (Author).

Author:
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Category : Aeronautics
Languages : en
Pages : 688

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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Author: Gianni Jarre
Publisher:
ISBN:
Category :
Languages : en
Pages : 32

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The diffusional mass flux of each component of a mixture, is explicitly expressed by resorting to a simplified acceptable form of the binary diffusion coefficient. Following the entropic way, the simple Kohler-Dyakov formula is synthetically extended from binary to multicomponent mixtures. The result is that the shock thickness is amplified by the diffusional effects in a multicomponent mixture, but never more so than in the binary mixture composed by the only lightest and heaviest gases. Numerical examples on rare gases are worked out. (Author).

Author: Ya. B. Zel’dovich
Publisher: Courier Corporation
ISBN: 048613508X
Category : Science
Languages : en
Pages : 946

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Book Description
Physical, chemical processes in gases at high temperatures are focus of outstanding text, which combines material from gas dynamics, shock-wave theory, thermodynamics and statistical physics, other fields. 284 illustrations. 1966–1967 edition.

Author: Wallace Hayes
Publisher: Elsevier
ISBN: 0323147852
Category : Science
Languages : en
Pages : 479

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Book Description
Physics of Shock Waves and High-Temperature Hydrodynamic Phenomena, Volume II presents interpretations of the physical basis of shockwaves and high-temperature hydrodynamic phenomena and gives practical guidance to those who work with these subjects in science and modern technology. This volume contains chapters discussing such topics as the shockwave structure in gases; physical and chemical kinetics in hydrodynamic processes; the radiative phenomena in shock waves and in strong explosions in the air; thermal waves and shockwaves in solids; and self-similar processes in gasdynamics. Physicists, engineers, researchers, and professors and students in the field of the physical sciences will find the book very educational.

Author: S. R. M. (Stanley Ray Macniven) Sinclair
Publisher: National Library of Canada
ISBN:
Category : Shock waves
Languages : en
Pages : 51

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The research was concerned with a theoretical description of shock wave structure in gaseous mixtures when diffusive effects are important. The problem considered in detail is the structure of a shock wave in a helium-argon mixture in which the argon is present in very small concentration. An anomalous result, cited in the literature, suggesting that the argon undergoes an initial pre-expansion before compression, was analysed to show the theoretical origin of this effect. The velocity distribution of a trace of heavy gas (and its lower moments) are watched as the heavy particles pass through a Mott-Smith background shock of lighter particles. The Mott-Smith background is chosen because its bimodal Maxwellian form provides an analytical determination of the free path to the next event for the heavy test particle at any point along its trajectory. This so-called Monte Carlo solution to the idealized diffusion shock problem can be used as a standard for evaluating the diffusion equations derived from various kinetic theory approximations. A number of systems of moment equations of the heavy particle Boltzmann equation were solved and the resulting heavy particle moment profiles compared with those of the Monte Carlo solution. A second strong diffusion problem was analysed from a kinetic theory point of view. It was found experimentally that the ion density profile through a shock in a weakly ionized plasma with elevated electron temperature is much more diffuse than the neutral atom shock. The theoretical analysis shows that this strong diffusion effect can be attributed to the electrical coupling between the ions and the hotter electron gas. (Author).

Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 776

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Author: Michael T. Madden
Publisher:
ISBN:
Category : Gases
Languages : en
Pages : 102

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Book Description
Results are given for equilibrium properties behind incident and reflected normal shock waves in CO2-N2-He mixtures wherein the gas may be vibrationally excited but not chemically reacting. A rapid numerical iterative analysis is described, and the results are given in simple graphical form for convenient use in shock tube and shock tunnel experiments. The results are anticipated to be of particular use in determining reservoir conditions for shock tunnel experiments dealing with vibrational population inversions in rapidly expanding mixtures. (Author).