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- W4286973536 abstract "In this paper we study a singular limit problem in the context of partially dissipative first order quasilinear systems. This problem arises in multiphase fluid mechanics. More precisely, taking into account dissipative effects for the velocity, we show that the so-called Kapilla system is obtained as a relaxation limit from the Baer-Nunziato (BN) system and derive the convergence rate of this process. The main problem we encounter is that the (BN)-system does not verify the celebrated (SK) condition due to Shizuta and Kawashima. It turns out that we can rewrite the (BN)-system in terms of new variables such as to highlight a subsystem for which the linearized does verify the (SK) condition which is coupled through lower-order terms with a transport equation. We construct an appropriate weighted energy-functional which allows us to tackle the lack of symmetry of the system, provides decay information and allows us to close the estimate uniformly with respect to the relaxation parameter." @default.
- W4286973536 created "2022-07-25" @default.
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- W4286973536 date "2021-09-16" @default.
- W4286973536 modified "2023-09-25" @default.
- W4286973536 title "Relaxation limit for a damped one-velocity Baer-Nunziato model to a Kappila model" @default.
- W4286973536 doi "https://doi.org/10.48550/arxiv.2109.07746" @default.
- W4286973536 hasPublicationYear "2021" @default.
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