Date of Award
January 2015
Degree Type
Thesis
Degree Name
Master of Science in Aeronautics and Astronautics
Department
Aeronautics and Astronautics
First Advisor
WILLIAM E ANDERSON
Committee Member 1
TIMOTHEE L POURPOINT
Committee Member 2
JAMES C SISCO
Abstract
The coupling between unsteady heat release and pressure fluctuations in a combustor leads to the complex phenomenon of combustion instability. Combustion instability can lead to enormous pressure fluctuations and high rates of combustor heat transfer which play a very important role in determining the life and performance of engine. Although high fidelity simulations are starting to yield detailed understanding of the underlying physics of combustion instability, the enormous computing power required restricts their application to a few runs and fairly simple geometries. To overcome this, low order models are being employed for prediction and analysis. Since low order models cannot account for the coupling between heat release and pressure fluctuations, lower-order combustion response models are required. One such attempt is made through the work presented here using a commercial software COMSOL.
Recommended Citation
Tamanampudi, Gowtham Manikanta Reddy, "Reduced Order Modeling and Analysis of Combustion Instabilities" (2015). Open Access Theses. 1080.
https://docs.lib.purdue.edu/open_access_theses/1080