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      https://www.ias.ac.in/article/fulltext/pram/048/01/0325-0364

    • Keywords

       

      Isotropic turbulence; homogeneous turbulence; turbulence simulation and modelling; theory and models of chaotic systems; critical point phenomena

    • Abstract

       

      We review some advances in the theory of homogeneous, isotropic turbulence. Our emphasis is on the new insights that have been gained from recent numerical studies of the three-dimensional Navier Stokes equation and simpler shell models for turbulence. In particular, we examine the status of multiscaling corrections to Kolmogorov scaling, extended self similarity, generalized extended self similarity, and non-Gaussian probability distributions for velocity differences and related quantities. We recount our recent proposal of a wave-vector-space version of generalized extended self similarity and show how it allows us to explore an intriguing and apparently universal crossover from inertial- to dissipation-range asymptotics.

    • Author Affiliations

       

      Sujan K Dhar1 Anirban Sain1 Ashwin Pande1 Rahul Pandit1 2

      1. Department of Physics, Indian Institute of Science, Bangalore - 560 012, India
      2. Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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