Flame Transfer Function Modeling for Screech Damping

ABSTRACT: The proposed work will lead to the development of time efficient design tools that are based on flame transfer functions. The design tool is a matlab based code that can be used to predict how changes from a base configuration will impact the propensity for screech. As a result, it can be used to help guide design of augmentors in terms of fuel placement and overall geometry. In a potential Phase II, the flame transfer functions will be incorporated into an overall acoustic code which can further guide design of the augmentor in terms of avoiding combustion instabilities. BENEFIT: The benefits of this project include both data and design tools that can be used to help designers of combustion systems avoid combustion instabilities. Because combustion instabilities affect all combustion systems to some extent, the tools developed can potentially be applied to systems such as boilers, furnaces, and water heaters.