{"title":"Predictive model for rotating detonation engine wave structure","authors":"R. F. Burke, T. Rezzag","doi":"10.1007/s00193-026-01263-7","DOIUrl":null,"url":null,"abstract":"<div><p>The internal flow field of the rotating detonation engine is unique and complex due to the curvature of the annular combustion channel and pressure relief at the exit of the combustor. Despite this complexity, there are several prominent flow field features: the detonation wave front, the refill zone, the trailing oblique shock, and the shear layer. This paper studies the detonation wave structure, developing a model that can predict the wave structure and the wave mode based solely on the dimensions of the engine and the inlet flow conditions. The results from this model are compared to a combination of experimental and computational data in the literature. Further analysis is made with various propellants to extrapolate the effects of engine operation on the wave structure. Further work on the wave structure could lead to predicting engine performance.</p></div>","PeriodicalId":775,"journal":{"name":"Shock Waves","volume":"36 1","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2026-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Shock Waves","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s00193-026-01263-7","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MECHANICS","Score":null,"Total":0}
引用次数: 0
Abstract
The internal flow field of the rotating detonation engine is unique and complex due to the curvature of the annular combustion channel and pressure relief at the exit of the combustor. Despite this complexity, there are several prominent flow field features: the detonation wave front, the refill zone, the trailing oblique shock, and the shear layer. This paper studies the detonation wave structure, developing a model that can predict the wave structure and the wave mode based solely on the dimensions of the engine and the inlet flow conditions. The results from this model are compared to a combination of experimental and computational data in the literature. Further analysis is made with various propellants to extrapolate the effects of engine operation on the wave structure. Further work on the wave structure could lead to predicting engine performance.
期刊介绍：
Shock Waves provides a forum for presenting and discussing new results in all fields where shock and detonation phenomena play a role. The journal addresses physicists, engineers and applied mathematicians working on theoretical, experimental or numerical issues, including diagnostics and flow visualization.
The research fields considered include, but are not limited to, aero- and gas dynamics, acoustics, physical chemistry, condensed matter and plasmas, with applications encompassing materials sciences, space sciences, geosciences, life sciences and medicine.
Of particular interest are contributions which provide insights into fundamental aspects of the techniques that are relevant to more than one specific research community.
The journal publishes scholarly research papers, invited review articles and short notes, as well as comments on papers already published in this journal. Occasionally concise meeting reports of interest to the Shock Waves community are published.
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