Výsledky vyhledávání - "Bonaventura, Zdenek"

Report

Electron multiplication in nanovoids at the initial stage of nanosecond discharge in liquid water

Autor: Bílek, Petr, Tungli, Ján, Šimek, Milan, Bonaventura, Zdeněk

The process of electron multiplication through the bouncing-like accelerated motion of electrons inside nanovoids formed owing to external electric fields in bulk liquid water is investigated using Monte Carlo simulations in Geant4-DNA. Our results s

Externí odkaz: http://arxiv.org/abs/2102.00537

Zobrazit plný text záznamu

Report

Sub-nanosecond delays of light emitted by streamer in atmospheric pressure air: analysis of N$_2$(C$^3\Pi_u$) and N$_2^+($B$^2\Sigma_u^{+}$) emissions and fundamental streamer structure

Autor: Hoder, Tomas, Bonaventura, Zdenek, Bourdon, Anne, Simek, Milan

Both experimental and theoretical analysis of an {ultra-short} phenomena occurring during the positive streamer propagation in atmospheric pressure air is presented. {With tens-of-picoseconds and tens-of-microns precision, it is shown that when the s

Externí odkaz: http://arxiv.org/abs/1404.1605

Zobrazit plný text záznamu

Report

A numerical strategy to discretize and solve the Poisson equation on dynamically adapted multiresolution grids for time-dependent streamer discharge simulations

Autor: Duarte, Max, Bonaventura, Zdenek, Massot, Marc, Bourdon, Anne

Publikováno v: Journal of Computational Physics, 289, 129-148 (2015)

We develop a numerical strategy to solve multi-dimensional Poisson equations on dynamically adapted grids for evolutionary problems disclosing propagating fronts. The method is an extension of the multiresolution finite volume scheme used to solve hy

Externí odkaz: http://arxiv.org/abs/1311.2488

Zobrazit plný text záznamu

Report

Derivation of a merging condition for two interacting streamers in air

Autor: Bonaventura, Zdenek, Duarte, Max, Bourdon, Anne, Massot, Marc

Publikováno v: Plasma Sources Science and Technology 21 (5), 052001 (2012)

The simulation of the interaction of two simultaneously propagating air streamers of the same polarity is presented. A parametric study has been carried out using an accurate numerical method which ensures a time-space error control of the solution.

Externí odkaz: http://arxiv.org/abs/1208.0114

Zobrazit plný text záznamu

Report

A new numerical strategy with space-time adaptivity and error control for multi-scale streamer discharge simulations

Autor: Duarte, Max, Bonaventura, Zdenek, Massot, Marc, Bourdon, Anne, Descombes, Stéphane, Dumont, Thierry

Publikováno v: Journal of Computational Physics, 231, 3 (2012) 1002-1019

This paper presents a new resolution strategy for multi-scale streamer discharge simulations based on a second order time adaptive integration and space adaptive multiresolution. A classical fluid model is used to describe plasma discharges, consider

Externí odkaz: http://arxiv.org/abs/1103.0506

Zobrazit plný text záznamu