68 citations · 211 across the 16 of their papers we have counts for
17 papers
Plasma stratification in AC discharges in noble gases at low currents
Vladimir I. Kolobov, Robert R. Arslanbekov
A hybrid kinetic-fluid model is used to study plasma stratification in alternating current (AC) discharges in noble gases at low plasma densities. Self-consistent coupled solutions…
Self-pulsing of Dielectric Barrier Discharges at Low Driving Frequencies
Shanti K. Thagunna, Vladimir I. Kolobov, Gary P. Zank
This paper investigates the self-pulsing of Dielectric Barrier Discharges (DBDs) at low driving frequencies. In particular, (a) the dependence of current on the product pd of gas p…
Peculiarities of charged particle kinetics in spherical plasma
V I Kolobov, R R Arslanbekov, H Liang
We describe kinetic simulations of transient problems in partially ionized weakly-collisional plasma around spherical bodies absorbing or emitting charged particles. Numerical solu…
Electron Kinetics in a Positive Column of AC Discharges in a Dynamic Regime
Nathan A Humphrey, Vladimir I Kolobov
We have performed hybrid kinetic-fluid simulations of a positive column in AC Argon discharges over a range of driving frequencies f and gas pressure p for the conditions when the…
Ionization waves (striations) in low-current DC discharges in noble gases obtained with a hybrid kinetic-fluid model
Vladimir I. Kolobov, Robert R. Arslanbekov
A hybrid kinetic-fluid model is used to study ionization waves (striations) in a low-current plasma column of DC discharges in noble gases. Coupled solutions of a kinetic equation…
A self-consistent hybrid model of kinetic striations in low-current Argon discharges
Vladimir I. Kolobov, Juan Alonso Guzman, Robert R. Arslanbekov
A self-consistent hybrid model of standing and moving striations was developed for low-current DC discharges in noble gases. We introduced the concept of surface diffusion in phase…
Implicit and Coupled Multi-Fluid Solver for Collisional Low-Temperature Plasma
Robert Arslanbekov, Vladimir Kolobov
We present a new multi-fluid, multi-temperature plasma solver with adaptive Cartesian mesh (ACM) based on a full-Newton (non-linear, implicit) scheme for collisional low-temperatur…
Plasma Stratification in Radio-Frequency Discharges of Noble Gases
Vladimir I Kolobov, Robert R Arslanbekov, Dmitry Levko +1
We conducted experimental studies and computer simulations of standing striations in capacitive coupled plasma in Argon gas. Standing striations were observed at frequencies 3.6, 8…
On the expansion of non-ideal copper plasma into vacuum
Dmitry Levko, Robert R. Arslanbekov, Vladimir I. Kolobov
The expansion of non-ideal copper plasma into vacuum is analyzed for the conditions typical to explosive electron emission in vacuum arcs. The gas-dynamic model solves the Euler eq…
Electron Groups in Solar Wind and Gas Discharge Plasmas
Vladimir Kolobov, Robert Arslanbekov, Dmitry Levko
The formation of electron groups is a common phenomenon in gas discharges and space plasmas. We describe similarities between electron kinetics in solar wind, cathode region of glo…
Boltzmann-Fokker-Planck Kinetic Solver with Adaptive Mesh in Phase Space
Vladimir Kolobov, Robert Arslanbekov, Dmitry Levko
We describe the implementation of kinetic solvers in 1d2v phase space using adaptive Cartesian mesh. Spherical coordinates in velocity space are used to simplify the Lorentz and Fo…
Kinetic Solvers with Adaptive Mesh in Phase Space for Low-Temperature Plasmas
Vladimir Kolobov, Robert Arslanbekov, Dmitry Levko
We describe the implementation of 1d1v and 1d2v Vlasov and Fokker-Planck kinetic solvers with adaptive mesh refinement in phase space (AMPS) and coupling these kinetic solvers to P…
Adaptive Kinetic-Fluid Models for Expanding Plasmas
Robert R. Arslanbekov, Vladimir I. Kolobov
We describe gas dynamic and plasma effects for transient plasma jets under different conditions. Our Unified Flow Solver (UFS) is evaluated for simulations of mixed continuum-raref…
Electrostatic PIC with adaptive Cartesian mesh
Vladimir I Kolobov, Robert R Arslanbekov
We describe an initial implementation of an electrostatic Particle-in-Cell (ES-PIC) module with adaptive Cartesian mesh in our Unified Flow Solver framework. Challenges of PIC meth…
A Discontinuous Galerkin Time-Domain Method with Dynamically Adaptive Cartesian Meshes for Computational Electromagnetics
Su Yan, Chao-Ping Lin, Robert R. Arslanbekov +2
A discontinuous Galerkin time-domain (DGTD) method based on dynamically adaptive Cartesian meshes (ACM) is developed for a full-wave analysis of electromagnetic fields in dispersiv…
Adaptive Kinetic-Fluid Solvers for Heterogeneous Computing Architectures
Sergey Zabelok, Robert Arslanbekov, Vladimir Kolobov
We show feasibility and benefits of porting an adaptive multi-scale kinetic-fluid code to CPU-GPU systems. Challenges are due to the irregular data access for adaptive Cartesian me…
Kinetic Solvers with Adaptive Mesh in Phase Space
Robert R. Arslanbekov, Vladimir I. Kolobov, Anna A. Frolova
An Adaptive Mesh in Phase Space (AMPS) methodology has been developed for solving multi-dimensional kinetic equations by the discrete velocity method. A Cartesian mesh for both con…