Second-order structure function in high-resolution DNSs of turbulence $-$ Where is the inertial subrange?

ORAL

Abstract

We report some results of a series of high resolution direct numerical simulations (DNSs) of forced incompressible isotropic turbulence with up to $12288^3$ grid points and Taylor microscale Reynolds number $R_\lambda\sim 2300$. The DNSs show that there exists a scale range, approximately at $100

*This study used the computational resources of the K computer provided by the RIKEN AICS through the HPCI System Research projects (ID:hp160102 and ID:hp170087). This research was partly supported by JSPS KAKENHI (S)16H06339 and (B) 15H03603.

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Authors

  • Takashi Ishihara

    • Okayama Univ.

  • Yukio Kaneda

    • Aichi Institute of Technology

  • Koji Morishita

    • Kobe Univ.

  • Mitsuo Yokokawa

    • Kobe Univ.

  • Atsuya Uno

    • RIKEN AICS