Pulsed Instabilities in Combustion Chambers
- Creators
- Burnley, V.
- Swenson, G.
- Culick, F. E. C.
Abstract
A pulsed or "triggered" instability occurs when pressure oscillations develop in a linearly stable combustion system after being subjected to a sufficiently large disturbance. Such true nonlinear instabilities usually occur as subcritical bifurcations in dynamical systems theory. Understanding which nonlinear processes can lead to subcritical bi~urcations is the focus of this work. Earlier work with the approximate analysis used here has shown convincingly that nonlinear acoustics alone does not contain the phenomenon of pulsed instabilities; evidently some other nonlinear contribution must also be included. An extensive experimental and numerical investigation conducted by Baum and Levine strongly suggests that nonlinear combustion is required. Using models of pressure and velocity coupling, the current work studies the effect of nonlinear combustion on the behavior of the system.
Additional Information
© 1995, American Institute of Aeronautics and Astronautics. This work was partly supported by the Palace Knight Program of the U. S. Air Force, and partly by the California Institute of Technology, Pasadena, California.Attached Files
Published - 378_Burnley_VS_1995.pdf
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Additional details
- Eprint ID
- 20920
- Resolver ID
- CaltechAUTHORS:20101119-133446852
- Palace Knight Program of the U. S. Air Force
- Caltech
- Created
-
2010-11-19Created from EPrint's datestamp field
- Updated
-
2019-10-03Created from EPrint's last_modified field
- Caltech groups
- Guggenheim Jet Propulsion Center, GALCIT
- Series Name
- AIAA Papers
- Series Volume or Issue Number
- AIAA-95-2430
- Other Numbering System Name
- AIAA
- Other Numbering System Identifier
- 1995-2430