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/content/aip/journal/pof2/25/9/10.1063/1.4821358
1.
1. G. Ghorbaniasl, V. Agnihotri, and C. Lacor, “A self-adjusting flow dependent formulation for the classical Smagorinsky model coefficient,” Phys. Fluids 25, 055102 (2013).
http://dx.doi.org/10.1063/1.4804393
2.
2. L. Fang, L. Shao, J. P. Bertoglio, L. P. Lu, and Z. S. Zhang, “The rapid-slow decomposition of the subgrid flux in inhomogeneous scalar turbulence,” J. Turbul. 12(8), 123 (2011).
http://dx.doi.org/10.1080/14685248.2010.541257
http://aip.metastore.ingenta.com/content/aip/journal/pof2/25/9/10.1063/1.4821358
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/content/aip/journal/pof2/25/9/10.1063/1.4821358
2013-09-25
2016-08-28

Abstract

In this comment, we show that the novel formulation of the Smagorinsky model coefficient, proposed by Ghorbaniasl et al. [Phys. Fluids25, 055102 (2013)], satisfies neither the Galilean invariance nor the coordinate invariance, thus does not have physical significance. We conclude that their model is just to provide a coordinate-system-dependent dissipation term.

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