Abstract
The time difference calculation method, using the pressure peak rise time difference of high-frequency dynamic pressure signals to demonstrate the motion track of continuous rotating detonation wave (CRDW), is presented and verified. With the calculation method, the flowfield of CRDW has been reconstructed precisely. The angle of upstream oblique shock wave is defined for representing the influence of CRDW on the air inflow, which is impacted by the detonation combustion intensity and nozzle choking effect. The increase of combustor pressure makes the angle of upstream oblique shock wave decrease, indicating that the influence of detonation on air inflow strengthens. The angle of downstream oblique shock wave is mainly influenced by the contraction geometry of nozzle in the contraction ratio range of 2–10. The heights of CRDWs scatter around mm (), mm (, single wave), and mm (, two waves), respectively. The detonation wave height of single wave is higher than that of two waves in homo-rotating, and the height of ethylene–air CRDW is higher than that of hydrogen–air CRDW. This study will enrich the understanding and analysis method of CRDW flowfield structure.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
