Author(s)

Tim Lieuwen & Ben T. Zinn

Abstract

Detrimental combustion instabilities are often excited in high intensity combustion systems. These instabilities manifest themselves as large amplitude acoustic oscillations, which are driven by complex interactions between acoustic waves and unsteady combustion processes. To predict the onset of these instabilities, capabilities for modeling the interactions between the combustion process and the multidimensional acoustic field must be developed. Due to the complexity of the problem, previous analyses of such problems have generally assumed that the acoustic field in the vicinity of the flame is one-dimensional or quasi one-dimensional, thus producing results whose validity is uncertain. This paper re-examines th

Keywords