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Article: New data from S.L. Rani et al illuminate research in propulsion and power.
- Article from:
- Defense & Aerospace Week
- Article date:
- March 11, 2009
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"A reduced-order model for combustion instability in a two-dimensional duct with a flameholder is presented. A linear flame-response function for a premixed flame of arbitrary mean shape is derived using the G-equation approach," scientists in the United States report.
"Perturbations consisting of coupled axial and transverse modes are superimposed on system mean flow conditions and analyzed for instability. Test cases involving variations of duct geometry, flameholder location, and mean flame shape are considered for evaluating the reduced-order model. Mean flow and temperature conditions and mean heat-release rate, needed as inputs to the model, are obtained ...