H. Lian ,HB. Gu , LJ. Yue , YX. Zhou , XY. Chang

DOI Number XXX-YYY-ZZZ

Conference Number HiSST 2018-1011

The combustion oscillation characteristics are investigated in a dual-mode model combustor equipped with cavity flameholders during acceleration experiments. The combustion oscillations are measured by a spark plug sensor at 200kHz. The spark plug sensor with fast response is preferable due to the short timescale associated in supersonic combustors. Its high sensitivity to flame dynamics also provides additional information other than the wall pressure measurement at conditions when minor pressure change occurs. Nonlinear analysis is performed to evaluate the deterministic and random nature of transient flame dynamics. Strong deterministic behavior is observed for the first time that positively supports further evaluation and development of predictive flame dynamics model.

Read the full paper >

In Categories: HiSST 2018, Hypersonic Aerodynamics, Hypersonic Propulsion, Propulsion Systems and Components, Thermal and Energy Management Systems
Email
Print
LinkedIn
The paper above was part of  proceedings of a CEAS event and as such the author has signed a publication agreement to have their paper published in the repository. In the case this paper is found somewhere else CEAS always links to the other source.  CEAS takes great care in making the correct content available to the reader. If any mistakes are found  in the listings please contact us directly at papers@aerospacerepository.org and we will correct the listing promptly.  CEAS cannot be held liable either for mistakes in editorial or technical aspects, nor for omissions, nor for the correctness of the content. In particular, CEAS does not guarantee completeness or correctness of information contained in external websites which can be accessed via links from CEAS’s websites. Despite accurate research on the content of such linked external websites, CEAS cannot be held liable for their content. Only the content providers of such external sites are liable for their content. Should you notice any mistake in technical or editorial aspects of the CEAS site, please do not hesitate to inform us.