Global solutions to nonisentropic hydrodynamic models for two-carrier plasmas

This paper is concerned with nonisentropic hydrodynamic models for two-carrier plasmas, which take the form of Euler equations for conservation laws of mass density, current density and energy density for two-carrier plasmas, coupled to Poisson’s equation for self-consistent electronic field. Due to...

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Bibliographic Details
Published in:Nonlinear analysis: real world applications 2016-02, Vol.27, p.107-123
Main Authors: Xu, Jiang, Xie, Mingfeng
Format: Article
Language:English
Subjects:
Chemin–Lerner spaces
Computational fluid dynamics
Density
Dissipation
Fluid flow
Global solutions
Hydrodynamics
Mathematical models
Nonisentropic hydrodynamic models
Nonlinearity
Plasmas
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Summary:This paper is concerned with nonisentropic hydrodynamic models for two-carrier plasmas, which take the form of Euler equations for conservation laws of mass density, current density and energy density for two-carrier plasmas, coupled to Poisson’s equation for self-consistent electronic field. Due to the nonlinear coupling and cancellation between electrons and ions, the expected dissipation rates of densities for two carriers are no longer available in comparison with the one-carrier case, which leads to the lack of exponential stability near constant equilibrium in the whole space. In order to capture the weaker dissipation and obtain global solutions in spatially critical Besov spaces, calculus techniques which have been recently developed in Chemin–Lerner spaces, will be further applied.
ISSN:1468-1218
1878-5719
DOI:10.1016/j.nonrwa.2015.07.012