Viscous hydrodynamics for strongly anisotropic expansion

Heinz, Ulrich; Bazow, Dennis; Strickland, Michael

doi:10.1016/j.nuclphysa.2014.08.082

Viscous hydrodynamics for strongly anisotropic expansion

Journal Article · Sat Nov 01 00:00:00 EDT 2014 · Nuclear Physics. A

DOI:https://doi.org/10.1016/j.nuclphysa.2014.08.082· OSTI ID:1604539

^[1]; Bazow, Dennis ^[2]; Strickland, Michael ^[3]

The Ohio State Univ., Columbus, OH (United States); The Ohio State University
The Ohio State Univ., Columbus, OH (United States)
Kent State Univ., Kent, OH (United States)

A new formulation of second-order viscous hydrodynamics, based on an expansion around a locally anisotropic momentum distribution, is presented. It generalizes the previously developed formalism of anisotropic hydrodynamics (aHydro) to include a complete set of dissipative currents for which equations of motion are derived by solving the Boltzmann equation in the 14-moment approximation. Finally, by solving the vaHydro equations for a transversally homogeneous, longitudinally boost-invariant system (-dimensional expansion) and comparing with the exact solution of the Boltzmann equation in relaxation-time approximation we show that vaHydro performs much better than all other known second-order viscous hydrodynamic approximations.

Research Organization:: The Ohio State Univ., Columbus, OH (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

Grant/Contract Number:: SC0004104; SC0004286

OSTI ID:: 1604539

Alternate ID(s):: OSTI ID: 22401884
OSTI ID: 1556718

Journal Information:: Nuclear Physics. A, Journal Name: Nuclear Physics. A Journal Issue: C Vol. 931; ISSN 0375-9474

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited By (2)

Relativistic second order dissipative hydrodynamics from an effective fugacity quasiparticle model Mitra, Sukanya Physical Review D, Vol. 100, Issue 1 https://doi.org/10.1103/physrevd.100.014012	journal	July 2019
Derivation of anisotropic dissipative fluid dynamics from the Boltzmann equation Molnár, Etele; Niemi, Harri; Rischke, Dirk H. Physical Review D, Vol. 93, Issue 11 https://doi.org/10.1103/physrevd.93.114025	journal	June 2016

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relaxation-time approximatoin
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