The temporal scaling laws of compressible turbulence

被引：12
|
作者：
Sun, Bohua [1 ]
机构：
[1] Cape Peninsula Univ Technol, POB 1906, ZA-7535 Cape Town, South Africa
来源：
MODERN PHYSICS LETTERS B | 2016年 / 30卷 / 23期
基金：
新加坡国家研究基金会;
关键词：
Turbulence; compressible flow; temporal scaling law;
D O I：
10.1142/S0217984916502973
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This paper proposes temporal scaling laws of the density-weighted energy spectrum for compressible turbulence in terms of dissipation rate, frequency and the Mach number. The study adopts the incomplete similarity theory in the scaling analysis of compressible turbulence motion. The investigation shows that the temporal Eulerian and Lagrangian energy spectra approach the -5/3 and -2 power laws when the Mach number M tends to reach unity and infinity, respectively.
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页数：14
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