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Numerical simulation of combustion instabilities in a lean Premixed combustor with finite rate chemistry

, , and . Proceedings of ASME TURBO EXPO 2003, GT2003-38558, page 429-438. (2003)Kongr.-Thema: Global power & propulsion solutions.

Abstract

Combustion instabilities in lean premixed gas turbine combustors remain a major limitation in decreasing NOx emissions. Computational Fluid Dynamics (CFD) has become an important design and analysis tool that is often used to predict thermoacoustic oscillations caused by these instabilities. Limitations to prediction accuracy are imposed by the choice of chemistry and combustion model. The focus of this study is to compare CFD calculations using Eddy Dissipation and Finite Rate Chemistry models to experimental data reported by Richards and Janus (1997) on the single-injector lean premixed DOE-NETL combustor. The computational domain consists …(more)

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