Jet Oscillation at Low-Altitude Operation Mode in Dual-Bell Nozzle

被引：10

作者：

Proshchanka, Dzianis ^{[1
]}

Koichi, Yonezawa ^{[1
]}

Tsukuda, Hiroaki ^{[1
]}

Araki, Kasumi ^{[1
]}

Tsujimoto, Yoshinobu ^{[1
]}

Kimura, Tatsuya ^{[2
]}

Yokota, Kazuhiko ^{[3
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Toyonaka, Osaka 5608531, Japan

[2] Mitsubishi Heavy Ind Co Ltd, Liquid Rocket Design Sect, Nagoya Guidance & Prop Syst Works, Komaki, Aichi 4858561, Japan

[3] Aoyama Gakuin Univ, Grad Sch Sci & Engn, Chuo Ku, Sagamihara, Kanagawa 5655258, Japan

来源：

JOURNAL OF PROPULSION AND POWER | 2012年 / 28卷 / 05期

关键词：

SIDE-LOAD ANALYSIS; COOLED NOZZLE; SCHEME;

D O I：

10.2514/1.B34466

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A flow oscillation phenomenon of the dual-bell nozzle at low-altitude operation mode is investigated with cold-flow experiments and numerical simulations. Results indicate the existence of three kinds of periodic flow oscillation modes: a symmetric lowest-frequency oscillation mode, which is an acoustic resonance in the axial direction in an extension part of the nozzle, and two high-frequency modes lateral to the nozzle axis originating due to vortex shedding and acoustic resonance in the extension nozzle cross section. These periodic flow oscillations are characteristic to dual-bell nozzles, and the extension part is the cause of these fluctuations, which are not observed in single-bell nozzles.

引用

页码：1071 / 1080

页数：10