Title: Shock refraction from classical gas to relativistic plasma environments
Authors: Keppens, Rony
Delmont, Peter
Meliani, Zakaria
Issue Date: 2011
Host Document: Proceedings of the International Astronomical Union, IAU Symposium vol:274 pages:441-444
Conference: IAU 274 Symposium location:Giardini Naxos, Italy date:6-10 September 2010
Abstract: The interaction of (strong) shock waves with localized density changes is of particular relevance to laboratory as well as astrophysical research. Shock tubes have been intensively studied in the lab for decades and much has been learned about shocks impinging on sudden density contrasts. In astrophysics, modern observations vividly demonstrate how (even relativistic) winds or jets show complex refraction patterns as they encounter denser interstellar material.
In this contribution, we highlight recent insights into shock refraction patterns, starting from classical up to relativistic hydro and extended to magnetohydrodynamic scenarios. Combining analytical predictions for shock refraction patterns exploiting Riemann solver methodologies, we confront numerical, analytical and (historic) laboratory insights. Using parallel, grid-adaptive simulations, we demonstrate the fate of Richtmyer-Meshkov instabilities when going from gaseous to magnetized plasma scenarios. The simulations invoke idealized configurations closely resembling lab analogues, while extending them to relativistic flow regimes.
ISBN: 978-0-52119-741-0
ISSN: 1743-9213
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Plasma-astrophysics Section

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science