Effects of secondary and thermionic electron emission on the collector and source sheaths of a finite ion temperature plasma using kinetic theory and numerical simulation

1993 ◽  
Vol 5 (2) ◽  
pp. 631-645 ◽  
Author(s):  
L. A. Schwager
Keyword(s):  
Numerical Simulation ◽  
Kinetic Theory ◽  
Electron Emission ◽  
Ion Temperature ◽  
Temperature Plasma ◽  
Thermionic Electron Emission

Measurements of real non-Newtonian response for liquid lubricants under moderate pressures

2001 ◽  
Vol 215 (3) ◽  
pp. 223-233 ◽  
Author(s):  
S Bair
Keyword(s):  
Numerical Simulation ◽  
Kinetic Theory ◽  
Simple Shear ◽  
Pressure Dependence ◽  
Shear Stresses ◽  
Current Interest ◽  
Flow Properties ◽  
Power Law Fluid ◽  
Temperature And Pressure

A thorough characterization of all viscous flow properties relevant to steady simple shear was carried out for five liquid lubricants of current interest to tribology. Shear stresses were generated to values significant to concentrated contact lubrication. Two types of non-Newtonian response were observed: shear-thinning as a power-law fluid and near rate-independence. Functions and parameters were obtained for the temperature and pressure dependence of the viscosity and of the time constant for the Carreau-Yasuda equation. Results are consistent with free volume and kinetic theory, but directly contradict many assumptions currently utilized for numerical simulation and for extracting rheological properties from contact measurements.

The reaction 10B(d, n)11C as an ion temperature plasma diagnostic

1980 ◽  
Vol 175 (2-3) ◽  
pp. 293-296 ◽  
Author(s):  
F.E. Cecil ◽  
Lek Keah Len ◽  
R.J. Peterson
Keyword(s):  
Plasma Diagnostic ◽  
Ion Temperature ◽  
Temperature Plasma

scholarly journals Two-temperature magnetohydrodynamic simulations for sub-relativistic active galactic nucleus jets: dependence on the fraction of the electron heating

2020 ◽  
Vol 493 (4) ◽  
pp. 5761-5772 ◽  
Author(s):  
Takumi Ohmura ◽  
Mami Machida ◽  
Kenji Nakamura ◽  
Yuki Kudoh ◽  
Ryoji Matsumoto
Keyword(s):  
Electron Temperature ◽  
X Rays ◽  
Ion Temperature ◽  
Temperature Plasma ◽  
Electron Heating ◽  
Coulomb Collisions ◽  
X Ray ◽  
Jet Plasma ◽  
Magnetohydrodynamic Simulations ◽  
Two Temperature

ABSTRACT We present the results of two-temperature magnetohydrodynamic simulations of the propagation of sub-relativistic jets of active galactic nuclei. The dependence of the electron and ion temperature distributions on the fraction of electron heating, fe, at the shock front is studied for fe = 0, 0.05, and 0.2. Numerical results indicate that in sub-relativistic, rarefied jets, the jet plasma crossing the terminal shock forms a hot, two-temperature plasma in which the ion temperature is higher than the electron temperature. The two-temperature plasma expands and forms a backflow referred to as a cocoon, in which the ion temperature remains higher than the electron temperature for longer than 100 Myr. Electrons in the cocoon are continuously heated by ions through Coulomb collisions, and the electron temperature thus remains at Te > 109 K in the cocoon. X-ray emissions from the cocoon are weak because the electron number density is low. Meanwhile, X-rays are emitted from the shocked intracluster medium (ICM) surrounding the cocoon. Mixing of the jet plasma and the shocked ICM through the Kelvin–Helmholtz instability at the interface enhances X-ray emissions around the contact discontinuity between the cocoon and shocked ICM.

The impact of surface hydrogenation on the thermionic electron emission from polycrystalline diamond films

2014 ◽  
Vol 211 (10) ◽  
pp. 2238-2243 ◽  
Author(s):  
S. Elfimchev ◽  
Sh. Michaelson ◽  
R. Akhvlediani ◽  
M. Chandran ◽  
H. Kaslasi ◽  
...  
Keyword(s):  
Electron Emission ◽  
Diamond Films ◽  
Polycrystalline Diamond ◽  
The Impact ◽  
Thermionic Electron Emission

Numerical Simulation of Thermal Electron Emission in Metal Films Ablated by Multi-Pulse Femtosecond Laser

2012 ◽  
Vol 49 (8) ◽  
pp. 083201
Author(s):  
徐斌 Xu Bin ◽  
伍晓宇 Wu Xiaoyu ◽  
凌世全 Ling Shiquan ◽  
罗烽 Luo Feng ◽  
杜晨林 Du Chenlin ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Femtosecond Laser ◽  
Electron Emission ◽  
Metal Films ◽  
Thermal Electron
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