Simulations of Explosive Electron Emission in Cathodic Arcs. Final Report for Phase I Project
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70 PLASMA PHYSICS AND FUSION TECHNOLOGY↗
Engineering topics
Kolobov, Vladimir
Publications and source records attributed to Kolobov, Vladimir.
Electron kinetics in low-temperature plasmas
This work presents an overview of recent advances in the field of electron kinetics in low-temperature plasmas (LTPs). It also provides author's views on where the field is headed and suggests promising strategies for further development. The authors have selected several problems to illustrate multidisciplinary nature of the subject (space and laboratory plasma, collisionless and collisional plasmas, and low-pressure and high-pressure discharges) and to illustrate how cross-disciplinary research efforts could enable further progress. Nonlocal electron kinetics and nonlocal electrodynamics in low-pressure rf plasmas resemble collisionless effects in space plasma and hot plasma effects in fusion science, terahertz technology, and plasmonics. The formation of electron groups in dc and rf discharges has much in common with three groups of electrons (core, strahl, and halo) in solar wind. Runaway electrons in LTPs are responsible for a wide range of physical phenomena from nano- and picoscale breakdown of dielectrics to lightning initiation. Understanding electron kinetics of LTPs could promote scientific advances in a number of topics in plasma physics and accelerate modern plasma technologies.
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS↗
Adaptive kinetic-fluid solvers for heterogeneous computing architectures
Not Available
Zabelok, Sergey↗
Solving kinetic equations with adaptive mesh in phase space for rarefied gas dynamics and plasma physics (Invited)
The paper describes an Adaptive Mesh in Phase Space (AMPS) technique for solving kinetic equations with deterministic mesh-based methods. The AMPS technique allows automatic generation of adaptive Cartesian mesh in both physical and velocity spaces using a Tree-of-Trees data structure. We illustrate advantages of AMPS for simulations of rarefied gas dynamics and electron kinetics on low temperature plasmas. In particular, we consider formation of the velocity distribution functions in hypersonic flows, particle kinetics near oscillating boundaries, and electron kinetics in a radio-frequency sheath. AMPS provide substantial savings in computational cost and increased efficiency of the mesh-based kinetic solvers.
70 PLASMA PHYSICS AND FUSION TECHNOLOGY↗