Scaling exponents saturate in three-dimensional isotropic turbulence
Kartik P. Iyer,
Katepalli R. Sreenivasan,
P. K. Yeung
Abstract:From a database of direct numerical simulations of homogeneous and isotropic turbulence, generated in periodic boxes of various sizes, we extract the spherically symmetric part of moments of velocity increments and first verify the following (somewhat contested) results: the 4/5-ths law holds in an intermediate range of scales and that the second order exponent over the same range of scales is anomalous, departing from the self-similar value of 2/3 and approaching a constant of 0.72 at high Reynolds numbers. W… Show more
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