SCALING PROPERTIES OF THE VISCOUS-CONVECTIVE SCALAR SPECTRAL SUBRANGE IN TURBULENT JETS

被引：2
|
作者：
KERSTEIN, AR
机构：
[1] Combustion Research Facility, Sandia National Laboratories, Livermore
来源：
PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1991年 / 3卷 / 07期
关键词：
D O I：
10.1063/1.857911
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A recent analysis by Dimotakis and Miller [Phys. Fluids A 2, 1919 (1990)] of the power spectrum of a diffusive scalar in turbulent flow identified a difficulty with the k-1 viscous-convective scaling in the limit of very large Schmidt number for finite-Reynolds-number flows with bounded scalar fluctuations. Here, a modified scaling of the form k-1-p is derived for the self-similar round jet, where p approximately Re-1/2 for Re >> 1.
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页码：1832 / 1835
页数：4
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