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Media type:
E-Article
Title:
THE INTERFACE COUPLING OF THE GAS DYNAMICS EQUATIONS
Contributor:
CHALONS, CHRISTOPHE;
RAVIART, PIERRE-ARNAUD;
SEGUIN, NICOLAS
Published:
Brown University, 2008
Published in:
Quarterly of Applied Mathematics, 66 (2008) 4, Seite 659-705
Language:
English
ISSN:
0033-569X;
1552-4485
Origination:
Footnote:
Description:
We investigate the one-dimensional coupling of two systems of gas dynamics at a fixed interface. The coupling constraints consist in requiring the continuity of a system of nonconservative variables at the interface. Since we are dealing with hyperbolic systems, weak coupling conditions are proposed. The existence and the uniqueness of the solutions of the coupled Riemann problem are investigated. Several examples of solutions satisfying the weak coupling conditions are contructed, either continuous or discontinuous with respect to the nonconservative variables at the interface.