Passive scalar turbulence in high dimensions.

نویسندگان

  • A Mazzino
  • P Muratore-Ginanneschi
چکیده

Exploiting a Lagrangian strategy we present a numerical study for both perturbative and nonperturbative regions of the Kraichnan advection model. The major result is the numerical assessment of the first-order 1/d expansion by Chertkov, Falkovich, Kolokolov, and Lebedev [Phys. Rev. E 52, 4924 (1995)] for the fourth-order scalar structure function in the limit of high dimension d's. In addition to the perturbative results, the behavior of the anomaly for the sixth-order structure functions versus the velocity scaling exponent, xi, is investigated and the resulting behavior is discussed.

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عنوان ژورنال:
  • Physical review. E, Statistical, nonlinear, and soft matter physics

دوره 63 1 Pt 2  شماره 

صفحات  -

تاریخ انتشار 2001