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Title: Numerical and experimental investigations of MHD processes of energy transforming in inhomogenious gas-plasma flows

Abstract

The results of experimental and theoretical research of MHD interaction processes of a plasma clot with carrying gas flow in Faraday MHD channel with continuous electrodes are represented. Two possible situations are being analysed: (1) working medium is air without seed, plasma clot is an equilibrium are stabilized with radiation (T-layer); (2) argon without seed, plasma exists in the form of a non-equilibrium are stabilized with electrons energy losses in elastic collisions with gas atoms. The experiment was being carried in a linear MHD channel started by a shock tube. Plasma clot was formed by an impulse electric discharge in a gasodynamic nozzle being placed between a throat and MHD channel. Self-supported current layer (T-layer) was being formed of a plasma clot under the influence of Lorentz force and Joule dissipation in the MHD channel. For compensation of near electrode voltage drop a charged battery of condensers was connected to the MHD channel electrodes instead of the load resistor. Plasma layer has steadily passed through the MHD channel {approximately}1.5 m length. In this case its parameters check well with the calculations performed on the basis of a piston model. Plasma clot initiation regime realized in this experiment was being simulatedmore » with the help of non-stationary quasi-one-dimensional design programm. Identity of the major calculation and experimental results has been shown. Dynamics of impulse strong current discharge has been studied; in so doing the role of gasodynamic expansion of a discharge zone and ionized air radiation in overall energy balance is determined.« less

Authors:
; ;  [1]
  1. Krasnoyarsk State Technical Univ. (Russian Federation); and others
Publication Date:
OSTI Identifier:
254650
Report Number(s):
CONF-950697-
CNN: Grant RKQ000; TRN: 96:015615
Resource Type:
Conference
Resource Relation:
Conference: 33. symposium on engineering aspects of magnetohydrodynamics, Tullahoma, TN (United States), 13-15 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the SEAM 33rd symposium on engineering aspects of magnetohydrodynamics; PB: 500 p.
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; 30 DIRECT ENERGY CONVERSION; MHD CHANNELS; GAS FLOW; MAGNETOHYDRODYNAMICS; MATHEMATICAL MODELS; SHOCK WAVES; INHOMOGENEOUS PLASMA; FLOW BLOCKAGE; RARE GASES; CLOSED-CYCLE MHD GENERATORS

Citation Formats

Slavin, V S, Gavrilov, V M, and Lobasova, M S. Numerical and experimental investigations of MHD processes of energy transforming in inhomogenious gas-plasma flows. United States: N. p., 1995. Web.
Slavin, V S, Gavrilov, V M, & Lobasova, M S. Numerical and experimental investigations of MHD processes of energy transforming in inhomogenious gas-plasma flows. United States.
Slavin, V S, Gavrilov, V M, and Lobasova, M S. 1995. "Numerical and experimental investigations of MHD processes of energy transforming in inhomogenious gas-plasma flows". United States.
@article{osti_254650,
title = {Numerical and experimental investigations of MHD processes of energy transforming in inhomogenious gas-plasma flows},
author = {Slavin, V S and Gavrilov, V M and Lobasova, M S},
abstractNote = {The results of experimental and theoretical research of MHD interaction processes of a plasma clot with carrying gas flow in Faraday MHD channel with continuous electrodes are represented. Two possible situations are being analysed: (1) working medium is air without seed, plasma clot is an equilibrium are stabilized with radiation (T-layer); (2) argon without seed, plasma exists in the form of a non-equilibrium are stabilized with electrons energy losses in elastic collisions with gas atoms. The experiment was being carried in a linear MHD channel started by a shock tube. Plasma clot was formed by an impulse electric discharge in a gasodynamic nozzle being placed between a throat and MHD channel. Self-supported current layer (T-layer) was being formed of a plasma clot under the influence of Lorentz force and Joule dissipation in the MHD channel. For compensation of near electrode voltage drop a charged battery of condensers was connected to the MHD channel electrodes instead of the load resistor. Plasma layer has steadily passed through the MHD channel {approximately}1.5 m length. In this case its parameters check well with the calculations performed on the basis of a piston model. Plasma clot initiation regime realized in this experiment was being simulated with the help of non-stationary quasi-one-dimensional design programm. Identity of the major calculation and experimental results has been shown. Dynamics of impulse strong current discharge has been studied; in so doing the role of gasodynamic expansion of a discharge zone and ionized air radiation in overall energy balance is determined.},
doi = {},
url = {https://www.osti.gov/biblio/254650}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Dec 31 00:00:00 EST 1995},
month = {Sun Dec 31 00:00:00 EST 1995}
}

Conference:
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