Effect of Fluid/Structure Coupling on Unstable Mechanisms in a Solid Rocket Motor

被引：1

作者：

Nunes, Renato ^{[1
]}

Plourde, Frederic ^{[2
]}

机构：

[1] Inst Tecnol Aeronaut, Space Prop Div, BR-12228901 Sao Jose Dos Campos, Brazil

[2] Ecole Natl Super Mecan & Aerotech, Inst P Prime, UPR CNRS 3346, F-86960 Chasseneuil, France

来源：

JOURNAL OF PROPULSION AND POWER | 2011年 / 27卷 / 02期

关键词：

FLOW;

D O I：

10.2514/1.48639

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The influence of fluid/structure coupling in a subscale model has been investigated in the framework of solid rocket motor instability. The first self-sustained oscillations of the flexible membrane were identified, and it was found that the flapping motion strengthens the laminarization process in the obstacle's wake vortex shedding. In addition, the equilibrium between vortices in the shear layer and wall vortex shedding is modified and instability is favored by introducing a flexible membrane. Introduction of the forced oscillating motion of the inhibitor gives rise to similar conclusions. However, a significant lessening of the unstable process was noted when the flexible membrane exhibited specific characteristics.

引用

页码：437 / 447

页数：11

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