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A Green's function approach to predict nonlinear thermoacoustic instabilities in combustors (2016)
Journal Article
Bigongiari, A., & Heckl, M. A. (2016). A Green's function approach to predict nonlinear thermoacoustic instabilities in combustors. Journal of Fluid Mechanics, 970 - 996. https://doi.org/10.1017/jfm.2016.332

The prediction of thermoacoustic instabilities is fundamental for combustion systems such as domestic burners and industrial gas turbine engines. High-amplitude pressure oscillations cause thermal and mechanical stress to the equipment, leading to pr... Read More about A Green's function approach to predict nonlinear thermoacoustic instabilities in combustors.

A new perspective on the flame describing function of a matrix flame (2015)
Journal Article
Heckl. (2015). A new perspective on the flame describing function of a matrix flame. International Journal of Spray and Combustion Dynamics, 91 - 112. https://doi.org/10.1260/1756-8277.7.2.91

This paper considers a fundamental thermoacoustic test rig developed by Noiray (“Linear and nonlinear analysis of combustion instabilities, application to multipoint injection systems and control strategies”, PhD thesis, École Centrale Paris, 2007) a... Read More about A new perspective on the flame describing function of a matrix flame.

Analysis and Control of an Unstable Mode in a Combustor with Tuneable End Condition (2013)
Journal Article
Heckl, M., & Kosztin, B. (2013). Analysis and Control of an Unstable Mode in a Combustor with Tuneable End Condition. International Journal of Spray and Combustion Dynamics, 5(3), 243-271. https://doi.org/10.1260/1756-8277.5.3.243

A major problem in the development of low-pollution combustion systems are thermo-acoustic instabilities, i.e. large-amplitude oscillations generated by a feedback between the unsteady heat release and acoustic waves. In order to develop robust contr... Read More about Analysis and Control of an Unstable Mode in a Combustor with Tuneable End Condition.

Analytical model of nonlinear thermo-acoustic effects in a matrix burner (2013)
Journal Article
Heckl, M. A. (2013). Analytical model of nonlinear thermo-acoustic effects in a matrix burner. Journal of Sound and Vibration, 332(17), 4021-4036. https://doi.org/10.1016/j.jsv.2012.11.010

This paper considers a fundamental thermo-acoustic test rig developed by Noiray (Linear and Nonlinear Analysis of Combustion Instabilities, Application to Multipoint Injection Systems and Control Strategies”, Ph.D. Thesis, École Centrale Paris, 2007)... Read More about Analytical model of nonlinear thermo-acoustic effects in a matrix burner.

Thermo-Acoustic Properties of a Burner with Axial Temperature Gradient: Theory and Experiment (2013)
Journal Article
Kosztin, B., Heckl, M., Müller, R., & Hermann, J. (2013). Thermo-Acoustic Properties of a Burner with Axial Temperature Gradient: Theory and Experiment. International Journal of Spray and Combustion Dynamics, 5(1), 67-84. https://doi.org/10.1260/1756-8315.5.1.67

This paper presents a model for thermo-acoustic effects in a gas turbine combustor. A quarter-wavelength burner with rectangular cross-section has been built and studied from an experimental and theoretical perspective. It has a premixed methane-air... Read More about Thermo-Acoustic Properties of a Burner with Axial Temperature Gradient: Theory and Experiment.