Artículo
Macroscopic approximation to relativistic kinetic theory from a nonlinear closure
Fecha de publicación:
04/02/2013
Editorial:
American Physical Society
Revista:
Physical Review D: Particles, Fields, Gravitation and Cosmology
ISSN:
0556-2821
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We use a macroscopic description of a system of relativistic particles based on adding a nonequilibrium tensor to the usual hydrodynamic variables. The nonequilibrium tensor is linked to relativistic kinetic theory through a nonlinear closure suggested by the entropy production principle; the evolution equation is obtained by the method of moments and together with energy-momentum conservation closes the system. Transport coefficients are chosen to reproduce second-order fluid dynamics if gradients are small. We compare the resulting formalism to exact solutions of Boltzmann’s equation in 0 þ 1 dimensions and show that it tracks kinetic theory better than second-order fluid dynamics.
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Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos(OCA CIUDAD UNIVERSITARIA)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Citación
Peralta Ramos, Jeronimo; Calzetta, Esteban Adolfo; Macroscopic approximation to relativistic kinetic theory from a nonlinear closure; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 87; 3; 4-2-2013; 1-6
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