爆轰燃烧在发动机上应用的关键问题之一是：如何采取有效技术强化湍流，在尽可能短的距离内形成稳定爆轰，最大程度降低发动机重量，但同时又能提高爆轰推进效率。射流喷射技术可有效解决上述难题，本项目着重研究射流模式对激励爆轰起爆的湍流机制。首先，通过测量湍流火焰经过固定障碍物和射流障碍物的流场演变，分别考察两种工况下流场结构和湍流强度，通过定量研究流场参数对爆轰起爆性能的影响，从而建立射流激励爆轰起爆的方法；其次，考察射流物理参数和化学属性对爆轰起爆的影响规律，建立射流特性与爆轰起爆机制的联系，通过对射流理化特性的调控达到提高爆轰起爆及推进性能目的；再次，对射流模式激励爆轰起爆的机制进行深入剖析，揭示湍流的生成机制以及建立湍流强化对爆轰起爆激励机制的理论。研究成果可为提升爆轰发动机推进效率提供理论支撑，同时能加深对超高音速模态下高效燃烧组织和性能的理解，为进一步发展爆轰发动机和研究爆轰物理提供依据。

How to develop effective technology to enhance turbulence, to form stable detonation within the shortest distance, and to reduce engine weight to the greatest degree, but can improve the efficiency of detonation propulsion, is one of the key problems for the application of detonation combustion in the engines. Aiming at to solve the aforementioned problem properly, this project intends to carry out systematic work to investigate the turbulence mechanism of fluidic jet on the facilitating of detonation initiation. First of all, by measuring the flow fluid evolution for the turbulent flame passing through fixed obstacles and jet flow obstacles, to investigate the field structure and turbulence intensity under those two conditions, respectively. Through a quantitative research on the flow field parameters affect the performance of detonation initiation, to develop an effective method to facilitate the detonation initiation. Second, a detailed investigation is performed on the relationship between the physical parameters of the jet flow and its properties with the detonation initiation mechanism, to establish the connection between the characteristics of the jet flow with the initiation mechanism of detonation, the purpose is to further improve the detonation initiation and propulsion performance in engines. Third, a deep analysis is performed on the facilitating mechanism of detonation by turbulence enhancing, revealing the generating mechanism of turbulent flow, and a theory of turbulence enhancing to the facilitating mechanism of detonation initiation is eventually established. The results can provide theoretical support for the development of efficiency propulsion technology in detonation engine, meanwhile can deepen the understanding of efficient combustion organization and its properties at high supersonic mode, which provides basis for the further development of detonation engine and detonation physics.