The physical nature of the phenomenon of positive column plasma constriction in low-pressure noble gas direct current discharges

2014 ◽  
Vol 21 (2) ◽  
pp. 023508 ◽  
Author(s):  
P. F. Kurbatov
Keyword(s):  
Direct Current ◽  
Positive Column ◽  
Noble Gas ◽  
Physical Nature ◽  
Low Pressure ◽  
Positive Column Plasma

The Electron Temperature in a Narrow-Discharge-Tube Noble-Gas Positive-Column Plasma

1990 ◽  
Vol 29 (Part 1, No. 1) ◽  
pp. 179-180 ◽  
Author(s):  
Teruo Kaneda ◽  
Yasufumi Ohsone ◽  
Tatsuzo Hosokawa ◽  
Jen-Shih Chang
Keyword(s):  
Electron Temperature ◽  
Discharge Tube ◽  
Positive Column ◽  
Noble Gas ◽  
Positive Column Plasma

Model of a He–Xe low-pressure dc positive column plasma

2003 ◽  
Vol 93 (12) ◽  
pp. 9508-9515 ◽  
Author(s):  
S. Gortchakov ◽  
H. Lange ◽  
D. Uhrlandt
Keyword(s):  
Positive Column ◽  
Low Pressure ◽  
Positive Column Plasma

Modeling the Hg-Ar low-pressure-discharge positive column: A comparative study

1992 ◽  
Vol 45 (2) ◽  
pp. 1135-1148 ◽  
Author(s):  
G. Zissis ◽  
P. Bénétruy ◽  
I. Bernat
Keyword(s):  
Comparative Study ◽  
Positive Column ◽  
Low Pressure ◽  
Pressure Discharge

Computations of Low Pressure Fluid Flow and Heat Transfer in Ducts Using Direct Simulation Monte Carlo Method

1999 ◽  
Author(s):  
Fang Yan ◽  
Bakhtier Farouk
Keyword(s):  
Heat Transfer ◽  
Monte Carlo ◽  
Noble Gas ◽  
Direct Simulation Monte Carlo ◽  
Low Pressure ◽  
Direct Simulation ◽  
Flow And Heat Transfer ◽  
Gas Transport Properties ◽  
Pressure Profiles ◽  
Simulation Monte Carlo

Abstract High Knudsen (Kn) number flows are found in vacuum and micro-scale systems. Such flows are characterized by non-continuum behavior. For gases, the flows are usually in the slip or transition regimes. In this paper, the direct simulation Monte Carlo (DSMC) method has been applied to compute low pressure, high Kn flow fields in partially heated channels. Computations were carried out for nitrogen, argon, hydrogen, oxygen and noble gas mixtures. Variation of the Kn is obtained by reducing the pressure while keeping the channel width constant. Nonlinear pressure profiles along the channel centerline are observed. Heat transfer from the channel walls is also calculated and compared with the Graetz solution. The effects of varying pressure, inlet flow and gas transport properties (Kn, Reynolds number, Re and the Prandtl number, Pr respectively) on the wall heat transfer (Nu) were examined. A simplified correlation for predicting Nu¯ as a function of Pe¯ and Kn¯ is presented.

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