Geodesic
Cooling Effect of the Richtmyer-Meshkov Instability
Farhang Mohseni1 ; Miller Mendoza1 ; Sauro Succi2 ; Hans J. Herrmann1, 3
1 ETH Zürich, Computational Physics for Engineering Materials, Institute for Building Materials, Wolfgang-Pauli-Strasse 27, HIT, CH-8093 Zürich (Switzerland)
2 Istituto per le Applicazioni del Calcolo C.N.R., Via dei Taurini, 19 00185, Rome (Italy)
3 Departamento de Física, Universidade Federal do Ceará, 60455-760 Fortaleza, Ceará, (Brazil)
ESAIM. Proceedings, Tome 52 (2015), pp. 66-75.

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We provide numerical evidence that the Richtmyer-Meshkov (RM) instability contributes to the cooling of a relativistic fluid. Due to the presence of jet particles traveling throughout the medium, shock waves are generated in the form of Mach cones. The interaction of multiple shock waves can trigger the RM instability, and we have found that this process leads to a down-cooling of the relativistic fluid. To confirm the cooling effect of the instability, shock tube Richtmyer-Meshkov instability simulations are performed. Additionally, in order to provide an experimental observable of the RM instability resulting from the Mach cone interaction, we measure the two particle correlation function and highlight the effects of the interaction. The simulations have been performed with an improved version of the relativistic lattice Boltzmann model, including general equations of state and external forces.
DOI : 10.1051/proc/201552004

Farhang Mohseni 1 ; Miller Mendoza 1 ; Sauro Succi 2 ; Hans J. Herrmann 1, 3

1 ETH Zürich, Computational Physics for Engineering Materials, Institute for Building Materials, Wolfgang-Pauli-Strasse 27, HIT, CH-8093 Zürich (Switzerland)
2 Istituto per le Applicazioni del Calcolo C.N.R., Via dei Taurini, 19 00185, Rome (Italy)
3 Departamento de Física, Universidade Federal do Ceará, 60455-760 Fortaleza, Ceará, (Brazil) 
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     author = {Farhang Mohseni and Miller Mendoza and Sauro Succi and Hans J. Herrmann},
     title = {Cooling {Effect} of the {Richtmyer-Meshkov} {Instability}},
     journal = {ESAIM. Proceedings},
     pages = {66--75},
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     doi = {10.1051/proc/201552004},
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Farhang Mohseni; Miller Mendoza; Sauro Succi; Hans J. Herrmann. Cooling Effect of the Richtmyer-Meshkov Instability. ESAIM. Proceedings, Tome 52 (2015), pp. 66-75. doi : 10.1051/proc/201552004. http://geodesic.mathdoc.fr/articles/10.1051/proc/201552004/

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