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Positivity Preservation in the Simulation of Relativistic Laser-Plasma Interaction

Wortmann, Anke

Abstract:
With standard schemes, the plasma density in the hydrodynamic model for relativistic laser-plasma interaction can become negative. Therefore, we present a new scheme that preserves the positivity of the plasma density while still satisfying the conservation of mass. The numerical results for a vacuum-plasma transition of a laser pulse in one and two dimensions compare very well to the results from a standard PIC code, but the computation time is greatly reduced.


Zugehörige Institution(en) am KIT Institut für Angewandte und Numerische Mathematik (IANM)
Publikationstyp Hochschulschrift
Jahr 2013
Sprache Englisch
Identifikator URN: urn:nbn:de:swb:90-361401
KITopen ID: 1000036140
Verlag Karlsruhe
Abschlussart Dissertation
Fakultät Fakultät für Mathematik (MATH)
Institut Institut für Angewandte und Numerische Mathematik (IANM)
Prüfungsdaten 17.07.2013
Referent/Betreuer Prof. M. Hochbruck
Schlagworte Fluc-Corrected Transport, Laser-Plasma Interaction, Positivity Preservation, Conservation Laws
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