scholarly journals First-order Chapman–Enskog velocity distribution function in a granular gas

2007 ◽  
Vol 376 ◽  
pp. 75-93 ◽  
Author(s):  
José María Montanero ◽  
Andrés Santos ◽  
Vicente Garzó
Keyword(s):  
Distribution Function ◽  
Velocity Distribution ◽  
Velocity Distribution Function ◽  
First Order ◽  
Granular Gas

scholarly journals GRANULAR GAS COOLING AND RELAXATION TO THE STEADY STATE IN REGARD TO THE OVERPOPULATED TAIL OF THE VELOCITY DISTRIBUTION

2007 ◽  
Vol 18 (04) ◽  
pp. 701-711 ◽  
Author(s):  
THORSTEN PÖSCHEL ◽  
NIKOLAI V. BRILLIANTOV ◽  
ARNO FORMELLA
Keyword(s):  
Distribution Function ◽  
Velocity Distribution ◽  
Large Scale ◽  
Velocity Distribution Function ◽  
High Energy ◽  
Granular Gases ◽  
Maxwell Distribution ◽  
Granular Gas ◽  
High Energy Tail ◽  
Gas Cooling

We present a universal description of the velocity distribution function of granular gases, f(v), valid for both, small and intermediate velocities where v is close to the thermal velocity and also for large v where the distribution function reveals an exponentially decaying tail. By means of large-scale Monte Carlo simulations and by kinetic theory we show that the deviation from the Maxwell distribution in the high-energy tail leads to small but detectable variation of the cooling coefficient and to extraordinary large relaxation time.

scholarly journals Velocity distribution function of hydrogen atoms in ion source discharges

2021 ◽  
Author(s):  
Tatsuhiro Tokai ◽  
Yuji Shimabukuro ◽  
Hidenori Takahashi ◽  
Keita Bito ◽  
Motoi Wada
Keyword(s):  
Distribution Function ◽  
Velocity Distribution ◽  
Velocity Distribution Function ◽  
Ion Source ◽  
Hydrogen Atoms

scholarly journals Velocity distribution function of spontaneously evaporating atoms

2020 ◽  
Vol 5 (10) ◽  
Author(s):  
Sergiu Busuioc ◽  
Livio Gibelli ◽  
Duncan A. Lockerby ◽  
James E. Sprittles
Keyword(s):  
Distribution Function ◽  
Velocity Distribution ◽  
Velocity Distribution Function

Electromagnetic fluctuations from energetic particles in plasmas

1988 ◽  
Vol 40 (3) ◽  
pp. 407-417 ◽  
Author(s):  
Cheng Chu ◽  
J. L. Sperling
Keyword(s):  
Distribution Function ◽  
Velocity Distribution ◽  
Charged Particles ◽  
Velocity Distribution Function ◽  
Black Body ◽  
Black Body Radiation ◽  
Specific Model ◽  
Magnetized Plasma ◽  
Plasma Power ◽  
Correlation Techniques

Electromagnetic fluctuations, induced by energetic charged particles, are calculated using correlation techniques for a uniform magnetized plasma. Power emission in the ion-cyclotron range of frequencies (ICRF) is calculated for a specific model of velocity distribution function. The emissive spectra are distinct from that of the black-body radiation and have features that are consistent with experimental observation.

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