@inproceedings{114cb7e31a5a48b7ac9dc34667e209e7,
title = "Impact of convection and diffusion processes in fundamental limitations of combustion control",
abstract = "This paper is aimed at understanding the role of physical processes of convection and diffusion on the fundamental limitations arising in fuel control of thermoacoustic instabilities. For this purpose, we develop a physics based reduced order {"}heat release{"} model that is analytical and incorporates a) distributed flame dynamics, b) exothermicity related dilatation effects, and c) distributed fuel dynamics including diffusion. Results show that convection leads to the presence of distributed delay, while diffusion, depending upon dif-fusivity and exothermicity constants, may lead to the presence of right half plane zeroes in the response of heat release to the fuel control command. We isolate these non-minimum phase aspects of dynamics and apply the theory of fundamental limitations to obtain conclusions on the impact of convection and diffusion on ones ability to use fuel based feedback control in controlling heat release.",
author = "Mehta, {Prashant G.} and Andrzej Banaszuk and Soteriou, {Marios C.}",
year = "2004",
doi = "10.2514/6.2004-2410",
language = "English (US)",
isbn = "9781624100307",
series = "2nd AIAA Flow Control Conference",
publisher = "American Institute of Aeronautics and Astronautics Inc.",
booktitle = "2nd AIAA Flow Control Conference",
note = "2nd AIAA Flow Control Conference 2004 ; Conference date: 28-06-2004 Through 01-07-2004",
}