Analysis and Low-Order Modeling of Interactions between Acoustics, Hydrodynamics and Premixed Flames

Beschreibung

This doctoral thesis analyzes interactions between acoustics and lean premixed flames from a thermoacoustic point of view. Special focus is put on the linear response of the global heat release rate of burner-stabilized laminar flames to acoustic perturbations. To this end, a first principle-based low order modeling framework is developed, which allows to separately investigate well-defined aspects of the underlying dynamics. High fidelity numerical simulations provide instructive validation data.

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Thomas Steinbacher

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Thermoacoustics Flame Dynamics Premixed Combustion

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