Self-generated magnetic fields modelling within high-order Lagrangian magneto-hydrodynamics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F21%3A00351506" target="_blank" >RIV/68407700:21340/21:00351506 - isvavai.cz</a>

Výsledek na webu

<a href="http://ocs.ciemat.es/EPS2021PAP/pdf/P1.2022.pdf" target="_blank" >http://ocs.ciemat.es/EPS2021PAP/pdf/P1.2022.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Self-generated magnetic fields modelling within high-order Lagrangian magneto-hydrodynamics

Popis výsledku v původním jazyce

The mechanism of magnetic field self-generation due to crossed gradients of density and temperature is known for a long time from the astrophysical context, but it finds its importance even within modelling of laser–target interaction and inertial confinement fusion in particular. Therefore, it is highly desirable to incorporate this phenomenon to the magneto-hydrodynamic description commonly used for magnetized dense plasmas. Specifically, Lagrangian framework modelling the physics of interaction in the moving fluid frame is considered. However, the classical approaches suffer from the detrimental selfamplification process known as the Biermann catastrophe. We propose a stable method for modelling of the Biermann battery effect within the two-temperature high-order curvilinear finite element hydrodynamics, which also maintain the magnetic field divergence-free. Construction of the method is reviewed and verified on a physically relevant simulation.

Název v anglickém jazyce

Self-generated magnetic fields modelling within high-order Lagrangian magneto-hydrodynamics

Popis výsledku anglicky

The mechanism of magnetic field self-generation due to crossed gradients of density and temperature is known for a long time from the astrophysical context, but it finds its importance even within modelling of laser–target interaction and inertial confinement fusion in particular. Therefore, it is highly desirable to incorporate this phenomenon to the magneto-hydrodynamic description commonly used for magnetized dense plasmas. Specifically, Lagrangian framework modelling the physics of interaction in the moving fluid frame is considered. However, the classical approaches suffer from the detrimental selfamplification process known as the Biermann catastrophe. We propose a stable method for modelling of the Biermann battery effect within the two-temperature high-order curvilinear finite element hydrodynamics, which also maintain the magnetic field divergence-free. Construction of the method is reviewed and verified on a physically relevant simulation.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

47th EPS Conference on Plasma Physics, EPS 2021

ISBN

978-1-7138-3704-6

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

341-344

Název nakladatele

European Physical Society

Místo vydání

Mulhouse

Místo konání akce

Sitges

Datum konání akce

21. 6. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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