A criterial generalization of the characteristics of vortexstabilized plasma generators

Dautov, G. Yu.; Zhukov, M. F.

doi:10.1007/bf00919320

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…In previous work [5][6][7], the pulsation of dc arcs in plasma generators shows that the plasma is non-stationary, and that the pulsation in the spatial position is manifested as fluctuations in the current, tension, and in the radiation intensity and temperature. It was shown that these pulsations follow a Gaussian distribution, with a relative standard deviation varying from 7 to 38%.…”

Section: Introductionmentioning

confidence: 99%

Effect of pulsation on the determination of temperature with the method of absolute line intensity

Thoukvatoulline¹,

Feldmann²

2000

J. Phys. D: Appl. Phys.

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The influence of pulsation instabilities of the plasma torch on the radiation intensity and on the radial temperature profile was studied. Two limit cases of pulsations were considered: (1) the plasma is stationary in space, but has pulsations of temperature at each point of the torch and (2) the axis of the torch accomplishes space oscillations in the laboratory system of coordinates. For these cases the lateral and radial intensities and the radial distributions of temperature were calculated for a plasma with cylindrical symmetry. The calculations were made for the stationary and non-stationary model supposing that the pulsations follow a Gaussian distribution. For this study the spectral line of Ar I at 415.8 nm was chosen. The effect of the pulsations was studied for values of the different standard deviation. The results show that the pulsations of the plasma can significantly influence the experimental results and can be the cause of differences between the theoretical calculations and the experimental measures.

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Section: Introductionmentioning

confidence: 99%

Effect of pulsation on the determination of temperature with the method of absolute line intensity

Thoukvatoulline¹,

Feldmann²

2000

J. Phys. D: Appl. Phys.

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“…No fully predictive theory of arc motion in magnetic fields has yet been propounded. However, a great deal of experimental data are available and have been correlated (Dautov and Zhukov 1965, Adams et al 1967, Guile and Naylor 1968, Guile et al 1969). It appears that electrode effects are greatest for short arcs moving at low speed and that purely aerodynamic effects, that is, control of the motion by the long column, predominate for long arcs moving at high speed.…”

Section: Introductionmentioning

confidence: 99%

Arc motion in magnetic fields in presence of gas flow

Lawton¹

1971

J. Phys. D: Appl. Phys.

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The analysis is concerned with the steady motion of dc arcs which are struck between a central cathode and the walls of a coaxial, cylindrical enclosure. There is an axial flow of gas and a steady, cylindrically symmetrical, applied magnetic field with both axial and radial components. It is shown that, under conditions such that the arc motion is controlled by the column rather than the electrode interactions, the motion can be described by two simultaneous differential equations. The boundary conditions are also considered. Solutions are obtained for several special cases in which the gas flow velocity and/or the radial component of the field are small, but not negligible, quantities. Such solutions are directly relevant to arc heater applications, for example. From the analysis it is clear that very great control of the arc position and rotation within the enclosure can be obtained with even the simplest field geometry, namely a constant axial magnetic field.

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A similarity criterion for electrical discharge in gases

Daumov

1972

J Appl Mech Tech Phys

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A criterial generalization of the characteristics of vortexstabilized plasma generators

Cited by 4 publications

References 3 publications

Effect of pulsation on the determination of temperature with the method of absolute line intensity

Effect of pulsation on the determination of temperature with the method of absolute line intensity

Arc motion in magnetic fields in presence of gas flow

A similarity criterion for electrical discharge in gases

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