Xin HAN, Ruofan QIU, Yancheng YOU

DOI Number: N/A

Conference number: HiSST-2025-208

Standing oblique detonation engines (SODEs) have great potential in the field of air-breathing hypersonic propulsion, making it necessary to carry out an in-depth study of their key flow phenomena. In this paper, the asymmetric reflection of oblique detonation waves (ODWs) and oblique shock waves (OSWs) is investigated, and the transition mechanism between regular and Mach reflections is illustrated through theoretical analysis. In determining the reflection shock on the ODW side, two hypotheses, frozen chemistry and chemical equilibrium, are used to obtain two different sonic-point criteria, and the RR →MR transition occurs between these two criteria. The von Neumann criterion is derived based on the asymmetric reflection modeling of the leading inert shock of ODW and the OSW. The MR →RR transition point obtained through inviscid numerical simulation is slightly larger than this von Neumann criterion. This study provides a preliminary investigation of the complex ODW-OSW reflection phenomena in SODE combustors.

Read the full paper here

In Categories: 1.Events, 1.HiSST 2025, High-Speed Aerodynamics and Aerothermodynamics with application to hypersonic regimes
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.