Cascade time scales for energy and helicity in homogeneous isotropic turbulence.

@article{Kurien2004CascadeTS,
  title={Cascade time scales for energy and helicity in homogeneous isotropic turbulence.},
  author={S. Kurien and M. Taylor and T. Matsumoto},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2004},
  volume={69 6 Pt 2},
  pages={
          066313
        }
}
  • S. Kurien, M. Taylor, T. Matsumoto
  • Published 2004
  • Physics, Medicine
  • Physical review. E, Statistical, nonlinear, and soft matter physics
  • We extend the Kolmogorov phenomenology for the scaling of energy spectra in high-Reynolds-number turbulence, to explicitly include the effect of helicity. There exists a time scale tau(H) for helicity transfer in homogeneous, isotropic turbulence with helicity. We arrive at this time scale using the phenomenological arguments used by Kraichnan to derive the time scale tau(E) for energy transfer [J. Fluid Mech. 47, 525 (1971)]]. We show that in general tau(H) may not be neglected compared to tau… CONTINUE READING

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