Energy dissipation rate and energy spectrum in high resolution direct numerical simulations of turbulence in a periodic box

DOI PDF 被引用文献50件
  • Yukio Kaneda
    Department of Computational Science and Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
  • Takashi Ishihara
    Department of Computational Science and Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
  • Mitsuo Yokokawa
    Grid Technology Research Center, National Institute of Advanced Industrial Science and Technology, Umezono 1-1-1, Tsukuba 305-8568, Japan
  • Ken’ichi Itakura
    Earth Simulator Center, Japan Marine Science and Technology Center, Kanazawa-ku, Yokohama 236-0001, Japan
  • Atsuya Uno
    Earth Simulator Center, Japan Marine Science and Technology Center, Kanazawa-ku, Yokohama 236-0001, Japan

書誌事項

公開日
2003-02-01
DOI
  • 10.1063/1.1539855
公開者
AIP Publishing

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<jats:p>High-resolution direct numerical simulations (DNSs) of incompressible homogeneous turbulence in a periodic box with up to 40963 grid points were performed on the Earth Simulator computing system. DNS databases, including the present results, suggest that the normalized mean energy dissipation rate per unit mass tends to a constant, independent of the fluid kinematic viscosity ν as ν→0. The DNS results also suggest that the energy spectrum in the inertial subrange almost follows the Kolmogorov k−5/3 scaling law, where k is the wavenumber, but the exponent is steeper than −5/3 by about 0.1.</jats:p>

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