PRACTICAL ACTIVE CONTROL-SYSTEM FOR COMBUSTION OSCILLATIONS

被引：79

作者：

LANGHORNE, PJ ^{[1
]}

DOWLING, AP ^{[1
]}

HOOPER, N ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,DEPT ENGN,CAMBRIDGE,ENGLAND

来源：

JOURNAL OF PROPULSION AND POWER | 1990年 / 6卷 / 03期

关键词：

D O I：

10.2514/3.25437

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A low-frequency combustion instability of a flame burning in a duct has been successfully controlled by the unsteady addition of extra fuel. A suitably phased addition of only 3% more fuel reduces the peak in the pressure spectrum due to the combustion instability by some 12 dB. The acoustic energy in the 0-400 Hz bandwidth is reduced to 18% of its uncontrolled value. Since relatively little unsteady fuel is necessary, the mechanical power requirements of the controller are modest and the system is easy to implement. © 1988 American Institute of Aeronautics and Astronautics.

引用

页码：324 / 333

页数：10

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