Optimized fluid dynamics for heavy ion collisions

doi:10.1016/j.nuclphysa.2017.06.028

Title: Optimized fluid dynamics for heavy ion collisions

Abstract

The (viscous) anisotropic hydrodynamic approach, especially after perturbative inclusion of all residual viscous terms, has been shown to dramatically outperform viscous hydrodynamics in several simplified situations for which exact solutions exist but which share with realistic expansion scenarios the problem of large dissipative currents. Here we will report on the present status of applying viscous anisotropic hydrodynamics in a highly efficient simulation of the full three-dimensional quark-gluon plasma. Results from accelerated 3+1-dimensional viscous hydrodynamic simulations using graphics processing units will be compared to the anisotropic frameworks.

Authors:

Bazow, Dennis ^[1]; Heinz, Ulrich ^[1]; Strickland, Michael ^[2]

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

Publication Date:: 2017-09-25

Research Org.:: The Ohio State Univ., Columbus, OH (United States); Kent State Univ., Kent, OH (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1502367

Grant/Contract Number:: [SC0004286; SC0013470]

Resource Type:: Accepted Manuscript

Journal Name:: Nuclear Physics. A

Additional Journal Information:: [ Journal Volume: 967; Journal Issue: C]; Journal ID: ISSN 0375-9474

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Relativistic fluid dynamics; Quark-gluon plasma; Anisotropic hydrodynamics; GPU

Citation Formats


                    Bazow, Dennis, Heinz, Ulrich, and Strickland, Michael. Optimized fluid dynamics for heavy ion collisions.  United States: N. p., 2017. 
        Web.  doi:10.1016/j.nuclphysa.2017.06.028.

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                    Bazow, Dennis, Heinz, Ulrich, & Strickland, Michael. Optimized fluid dynamics for heavy ion collisions.  United States.  doi:10.1016/j.nuclphysa.2017.06.028.

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                    Bazow, Dennis, Heinz, Ulrich, and Strickland, Michael. Mon .  
        "Optimized fluid dynamics for heavy ion collisions".  United States.  doi:10.1016/j.nuclphysa.2017.06.028.  https://www.osti.gov/servlets/purl/1502367.

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@article{osti_1502367,

  title        = {Optimized fluid dynamics for heavy ion collisions},

  author       = {Bazow, Dennis and Heinz, Ulrich and Strickland, Michael},

  abstractNote = {The (viscous) anisotropic hydrodynamic approach, especially after perturbative inclusion of all residual viscous terms, has been shown to dramatically outperform viscous hydrodynamics in several simplified situations for which exact solutions exist but which share with realistic expansion scenarios the problem of large dissipative currents. Here we will report on the present status of applying viscous anisotropic hydrodynamics in a highly efficient simulation of the full three-dimensional quark-gluon plasma. Results from accelerated 3+1-dimensional viscous hydrodynamic simulations using graphics processing units will be compared to the anisotropic frameworks.},

  doi          = {10.1016/j.nuclphysa.2017.06.028},

  journal      = {Nuclear Physics. A},

  number       = [C],

  volume       = [967],

  place        = {United States},

  year         = {2017},

  month        = {9}

}

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Journal Article:

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DOI: 10.1016/j.nuclphysa.2017.06.028

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Figures / Tables:

Table 1: Performance results of the C/CPU and CUDA/GPU versions of CPU-VH and GPUVH by measuring the computer time it takes to complete one full RK step, averaged over 100 time steps, at different spatial resolutions.

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Table 1(p. 2)

Fig. 1. (p. 4)

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