Large-scale lognormality in turbulence modeled by the Ornstein-Uhlenbeck process

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Abstract

Lognormality was found experimentally for coarse-grained squared turbulence velocity and velocity increment when the coarsening scale is comparable to the correlation scale of the velocity [ Mouri et al. Phys. Fluids 21 065107 (2009)]. We investigate this large-scale lognormality by using a simple stochastic process with correlation, the Ornstein-Uhlenbeck (OU) process. It is shown that the OU process has a similar large-scale lognormality, which is studied numerically and analytically.

Journal

  • Physical Review E

    Physical Review E 87(1), 2013-01

    American Physical Society

Codes

  • NII Article ID (NAID)
    120005242570
  • NII NACSIS-CAT ID (NCID)
    AA11558033
  • Text Lang
    ENG
  • Article Type
    journal article
  • ISSN
    1539-3755
  • Data Source
    IR 
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