scholarly journals Model for the Interaction of Thermal Radiation with a Monatomic Plasma

1976 ◽  
Vol 31 (9) ◽  
pp. 1038-1041 ◽  
Author(s):  
J. R. Saraf
Keyword(s):  
Kinetic Model ◽  
Thermal Radiation ◽  
Coordinate System ◽  
Inertial Coordinate System ◽  
Proposed Model ◽  
Weakly Ionized ◽  
H Theorem ◽  
Weakly Ionized Plasma ◽  
Energy And Momentum

Abstract A kinetic model for a weakly-ionized plasma interacting with radiation is proposed based on the energy-momentum method, in which both energy and momentum of the system are conserved. The radiation-initiated ionization is obtained in a non-inertial coordinate system, and the proposed model satisfies the H-theorem.

Monatomic plasma-thermal radiation interaction: a weakly-ionized kinetic model

1975 ◽  
Vol 13 (3) ◽  
pp. 523-537 ◽  
Author(s):  
Warren F. Phillips ◽  
Vedat S. Arpaci
Keyword(s):  
Kinetic Model ◽  
Thermal Radiation ◽  
Local Equilibrium ◽  
Degree Of Ionization ◽  
Kinetic Formulation ◽  
Equilibrium Degree ◽  
Proposed Model ◽  
Weakly Ionized ◽  
Conservation Principles ◽  
Monatomic Gas

A model for the kinetic formulation of a weakly-ionized monatomic gas, which interacts with thermal radiation, is proposed. The collision terms for particle-initiated ionization, developed in terms of a non-equilibrium degree of ionization, and the collision terms for photon-initiated ionization, developed by assuming particles remain in local equilibrium during photon relaxation, all satisfy the usual conservation principles. It is also shown that the proposed model leads to an H theorem.

ON THE AMBIPOLAR DIFFUSION AND OTHER ASYMPTOTIC LIMITS OF WEAKLY IONIZED PLASMA FLOWS

2006 ◽  
Vol 16 (10) ◽  
pp. 1653-1676 ◽  
Author(s):  
FRANCOIS GOLSE ◽  
PIERRE-HENRI MAIRE ◽  
REMI SENTIS
Keyword(s):  
Kinetic Model ◽  
Diffusion Model ◽  
Charged Particles ◽  
Ambipolar Diffusion ◽  
Energy Estimates ◽  
Background Flow ◽  
Plasma Flows ◽  
Neutral Particles ◽  
Weakly Ionized ◽  
Weakly Ionized Plasma

This paper reviews several different models of weakly ionized plasma flows, where charged particles are scattered in a background flow of neutral particles. A multispecies diffusion model is derived from either a kinetic model or a multifluid model (which is the Maxwellian closure of the kinetic model). This derivation is purely formal (in the sense that only the Hilbert or Chapman–Enskog expansions are established). An even simpler model, the so-called ambipolar diffusion model is derived from the multispecies diffusion model. This latter derivation is based on energy estimates and on a form of maximum principle which is established by writing the multispecies diffusion system in terms of the so-called Slotboom variables.

scholarly journals A new result under weak and non-relativistic approximation from general theory of relativity

2021 ◽  
Author(s):  
Abhijit Samanta
Keyword(s):  
Field Equation ◽  
Energy Density ◽  
General Theory ◽  
Force Field ◽  
Coordinate System ◽  
Theory Of Relativity ◽  
General Theory Of Relativity ◽  
Inertial Coordinate System ◽  
Relativistic Approximation ◽  
Moving Particle

Abstract We have derived a metric field equation in the locally inertial coordinate system from Einstein's field equation considering the energy density of the moving particle with the approximations that the force field under which the particle is moving is weak and the velocity of the particle is non-relativistic. We study the motion of different microscopic systems using this metric equation and compared the results with the experimentally measured values and we find that the results are identical.

scholarly journals The Vibration of the String with the Interstitial Massive Point

2021 ◽  
Vol 10 (2) ◽  
Author(s):  
Miroslav Pardy ◽  
Keyword(s):  
Gamma Radiation ◽  
Coordinate System ◽  
Nuclear Resonance ◽  
Resonance Fluorescence ◽  
Mossbauer Effect ◽  
Massive Point ◽  
Atomic Nuclei ◽  
Proposed Model ◽  
Nuclear Resonance Fluorescence ◽  
The Right

We will consider the string, the left end of which is fixed at the beginning of the coordinate system, the right end is fixed at point l and mass m is fixed between the ends of the string. We determine the vibration of such system. The proposed model can be also related in the modified form to the problem of the Mossbauer effect, or recoil less nuclear resonance fluorescence, which is the resonant and recoil-free emission and absorption of gamma radiation by atomic nuclei bound in a solid.(Mossbauer,1958)

scholarly journals Macroparticle screening in a weakly ionized plasma

2007 ◽  
Vol 11 (2) ◽  
pp. 158-164 ◽  
Author(s):  
A. G. Zagorodny ◽  
A. V. Filippov ◽  
A. F. Pal' ◽  
A. N. Starostin ◽  
A. I. Momot
Keyword(s):  
Weakly Ionized ◽  
Weakly Ionized Plasma
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