Third-Order Nonlinear Acoustic Instabilities in Combustion Chambers, Part II: Transverse Modes
- Creators
- Yang, V.
- Kim, S. I.
- Culick, F. E. C.
Abstract
An analytical analysis has been developed to investigate the behavior of unsteady transverse pressure oscillations in combustion chambers. The model extends the previous analysis for the second-order standing wave motions and accommodates spinning oscillations and third-order nonlinearities. The influences of various parameters and initial conditions on the limit cycles and triggering of pressure oscillations are discussed. Results indicate that the existence of spinning oscillations depends strongly on the number of modes included in the analysis and on the initial conditions. The third-order acoustics has little influence on the triggering of instability. It only modifies the characteristics of limiting amplitudes.
Additional Information
© 1988, American Institute of Aeronautics and Astronautics. This work was supported partly by the ONR Grant No. 00014-84-K-0434, and partly by The Pennsylvania State University. The authors are greatly indebted to Dr. H. S. Sun for his assistance in formulating the model of the third-order nonlinear acoustic model.Attached Files
Published - 346_Yang_V_1988.pdf
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Additional details
- Eprint ID
- 21157
- Resolver ID
- CaltechAUTHORS:20101203-144226944
- Created
-
2010-12-04Created 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-88-0152
- Other Numbering System Name
- AIAA
- Other Numbering System Identifier
- 88-0152