Mixing transition in supersonic streamwise vortices

被引：0

作者：

Nishioka, Michio ^{[1
]}

Sakaue, Shoji ^{[1
]}

Komada, Kazuya ^{[1
]}

Sakoshi, Hiroyuki ^{[1
]}

Furukawa, Ikuhiro ^{[1
]}

机构：

[1] Osaka Prefecture Univ, Dept Aerosp Engn, Grad Sch Engn, Sakai, Osaka 5998531, Japan

来源：

IUTAM SYMPOSIUM ON ELEMENTARY VORTICES AND COHERENT STRUCTURES: SIGNIFICANCE IN TURBULENCE DYNAMICS | 2006年 / 79卷

关键词：

mixing transition; Kolmogorov's-5/3 power law; supersonic mixing and combustion; turbulence control;

D O I：

暂无

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The present paper describes our recent experimental studies on the supersonic mixing and combustion enhancement using streamwise vortices in spanwise-row configuration. Firing tests verify streamwise vortices of Gamma/v = 3 x 10(4) to be powerful for supersonic combustion enhancement. Cold-flow hot-wire measurements show that Kolmogorov's -5/3 power law region appears in the spectrum of rho u-fluctuations in the vortices for Gamma/v above about 10(4). This is not inconsistent with the minimum Reynolds number for the mixing transition proposed by Dimotakis (2000).

引用

页码：249 / +

页数：2

共 18 条

[1] COMPRESSIBILITY EFFECTS IN TURBULENT SHEAR LAYERS [J].

BOGDANOFF, DW .

AIAA JOURNAL, 1983, 21 (06) :926-927

[2] The mixing transition in turbulent flows [J].

Dimotakis, PE .

JOURNAL OF FLUID MECHANICS, 2000, 409 :69-98

[3]

Drummond J., 1989, 19892794 AIAA

[4] MIXING-CONTROLLED SUPERSONIC COMBUSTION [J].

FERRI, A .

ANNUAL REVIEW OF FLUID MECHANICS, 1973, 5 :301-338

[5] MIXING ENHANCEMENT IN SUPERSONIC FREE SHEAR FLOWS [J].

GUTMARK, EJ ;

SCHADOW, KC ;

YU, KH .

ANNUAL REVIEW OF FLUID MECHANICS, 1995, 27 :375-417

[6]

NISHIOKA M, 1990, NAL, V12, P39

[7]

Nishioka M., 1997, J JAPAN SOC FLUID ME, V16, P415

[8]

NISHIOKA M, 2002, P INT S DYN STAT COH, P217

[9]

Nishioka M., 1995, J JAPAN SOC FLUID ME, V14, P377

[10]

Northam G. B., 1989, 892525 AIAA

← 1 2 →