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A Correction and Discussion on Log-Normal Intermittency B-Model

Department of Ocean Sciences, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-ku, Tokyo 108-8477, Japan
CNRS, Univ. Lille, Univ. Littoral Côte d’Opale, UMR 8187, LOG, Laboratoire d’Océanologie et de Géosciences, F 62930 Wimereux, France
Author to whom correspondence should be addressed.
Fluids 2019, 4(1), 35;
Received: 2 December 2018 / Revised: 28 January 2019 / Accepted: 13 February 2019 / Published: 21 February 2019
(This article belongs to the Special Issue Multiscale Turbulent Transport)
PDF [991 KB, uploaded 21 February 2019]


This paper discusses a turbulent intermittency model introduced in 1990, the B-model. It was found that the original manuscript which introduced the B-model contained a couple arithmetic errors in the equations. This work goes over corrections to the original equations, and explains where problems arose in the derivations. These corrections cause the results to differ from those in the original manuscript, and these differences are discussed. A generalization of this B-model is then introduced to explore the range of behaviors this style of model provides. To distinguish between the different intermittency models discussed in this paper requires structure function power exponents of order greater than 12. As a source of comparison, data from a flume experiment is introduced, and, with the corrections introduced, this data seems to imply that an intermittency coefficient between 0.17 and 0.2 gives good agreement. Higher quality future measurements of high order moments could help with distinguishing the different intermittency models. View Full-Text
Keywords: turbulence theory; intermittency; breakage model turbulence theory; intermittency; breakage model

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Locke, C.; Seuront, L.; Yamazaki, H. A Correction and Discussion on Log-Normal Intermittency B-Model. Fluids 2019, 4, 35.

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