Dissipation conditioned stochastic modeling of scalar concentration fluctuations in turbulent flows

被引：3
|
作者：
Reynolds, A. M. [1 ]
机构：
[1] Rothamsted Expt Stn, Harpenden AL5 2JQ, Herts, England
来源：
PHYSICS OF FLUIDS | 2007年 / 19卷 / 07期
基金：
英国生物技术与生命科学研究理事会;
关键词：
D O I：
10.1063/1.2747681
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A dissipation conditioned stochastic model for the evolution scalar concentration fluctuations in turbulent flows is formulated. The model reproduces accurately observed distributions of scalar concentrations and the extreme intermittency of scalar time derivatives. The spectral function for scalar concentration fluctuations is consistent with the predictions of Kolmogorov-Obukhov-Corrsin theory. (c) 2007 American Institute of Physics.
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页数：6
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