A Computational Investigation on the Control of Cavity-Induced Pressure Oscillations Using Sub-Cavity

被引：4

作者：

Alam, Md. Mahbubul ^{[1
]}

Matsuo, Shigeru ^{[2
]}

Teramoto, Kenbu ^{[2
]}

Setoguchi, Toshiaki ^{[2
]}

Kim, Heuy-Dong ^{[3
]}

机构：

[1] Chittagong Univ Engn & Technol, Dept Mech Engn, Chittagong 4349, Bangladesh

[2] Saga Univ, Dept Mech Engn, Saga 8408502, Japan

[3] Andong Natl Univ, Coll Nat Sci, Sch Mech Engn, Andong, Kyung Pook, South Korea

来源：

JOURNAL OF THERMAL SCIENCE | 2006年 / 15卷 / 03期

关键词：

compressible flow; cavity-induced pressure oscillations; passive control; sub-cavity;

D O I：

10.1007/s11630-006-0213-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A computational investigation has been conducted to determine the effectiveness of a passive control technique of attenuating cavity-induced pressure oscillations in a confined two-dimensional supersonic flow. The passive control technique is achieved by fitting two flat plates near the front wall of a square cavity at Mach number 1.83 at the cavity entrance. The results showed that the flat plates attached near the front wall of the cavity, discouraged the formation of feedback loop which is widely believed to be the reason of cavity resonance. The resultant amount of attenuation of pressure oscillations was also dependent on the length of the flat plate used as an oscillation suppressor.

引用

页码：213 / 219

页数：7

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