Experimental diagnostics for the study of combustion instabilities in lean premixed combustors

被引:310
作者
Lee, JG [1 ]
Santavicca, DA [1 ]
机构
[1] Penn State Univ, Dept Mech & Nucl Engn, University Pk, PA 16802 USA
关键词
D O I
10.2514/2.6191
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
An improved understanding of the mechanisms of unstable combustion in lean premixed combustors is essential to the development of stable gas turbine combustion systems. To obtain such understanding, detailed experimental studies of the phenomenology of unstable combustion are required. A number of experimental diagnostic techniques for characterizing unstable combustion and the underlying instability mechanisms are discussed. This includes techniques based on pressure, chemiluminescence emission, infrared absorption, and laser-induced fluorescence measurements. The techniques themselves are discussed briefly; however, the primary objective is to present and discuss results illustrating how these techniques can be used to characterize the mechanisms of unstable combustion, to gain an improved understanding of unstable combustion, and to develop strategies for suppressing unstable combustion in lean premised gas turbine combustors.
引用
收藏
页码:735 / 750
页数:16
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