3-12 May 2019
Museum Casa de los Árabes
Cuba timezone
New deadline for the submission of proceedings: November 15, 2019

Divergence-type hyperbolic theories for ultrarelativistic fluids

7 May 2019, 09:20
20m
Museum Casa de los Árabes

Museum Casa de los Árabes

Ofícios 16, Havana 10100, Old Havana
Talk STARS

Speaker

Marcelo Enrique Rubio (IATE - CONICET)

Description

In this talk I will present a novel theory with the aim of describing the dynamics of ultrarelativistic fluids considering dissipative effects up to second order. The problem of achieving a covariant relativistic extension of the equations that describe non-relativistic dissipative fluids constitutes a very active area of current research, given that a well-posed and causal theory of viscous fluids is essential for a better description of several astrophysical problems, as for example the coalescence of compact objects, which constitute nowadays the main source of gravitational wave production. After mentioning previous attempts for covariant extensions of viscous fluids, we will present a proposal for the study of the dynamic evolution of ultrarelative fluids. Then, we will show how to implement the equations of the theory numerically, using the Kurganov-Tadmor centered method, which allows capturing discontinuous solutions that simulate shock waves, and show some simulations in the one-dimensional case.

Primary author

Marcelo Enrique Rubio (IATE - CONICET)

Co-author

Oscar Reula (IFEG - CONICET)

Presentation Materials