Title of article :
Multifractal analysis of fluid particle accelerations in turbulence
Author/Authors :
Arimitsu، نويسنده , , Toshihico and Arimitsu، نويسنده , , Naoko، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
13
From page :
218
To page :
230
Abstract :
The probability density function (PDF) of accelerations in turbulence is derived analytically with the help of the multifractal analysis based on generalized entropy, i.e., the Tsallis or the Rényi entropy. It is shown that the derived PDF explains quite well the one obtained by Bodenschatz et al. in the measurement of fluid particle accelerations in the Lagrangian frame at Rλ=690, and the one by Gotoh et al. in the DNS with the mesh size 10243 at Rλ=380.
Keywords :
PDF of fluid particle accelerations , Rényi entropy , Tsallis entropy , multifractal analysis , Fully developed turbulence
Journal title :
Physica D Nonlinear Phenomena
Serial Year :
2004
Journal title :
Physica D Nonlinear Phenomena
Record number :
1725568
Link To Document :
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