Fundamental Detonation Characteristics and their Influ- ence in Rotating Detonation Engines
旋转爆震发动机的基本爆震特性及其影响
基本信息
- 批准号:RGPIN-2018-06710
- 负责人:
- 金额:$ 1.97万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Discovery Grants Program - Individual
- 财政年份:2020
- 资助国家:加拿大
- 起止时间:2020-01-01 至 2021-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Detonation waves are a very rapid, high pressure and temperature phenomenon within which shock waves initially trigger chemical reactions. Their violent nature makes them a subject of interest both from the point of view of mitigation, where industrial environments would be devastated by the accidental formation of such a wave, as well as a building block in high efficiency, advanced propulsion systems. This proposal is most interested in the former, which has recently started materializing in the form of the Rotating Detonation Engine (RDE). Given the continuous operation of the device, the detonation waves that are part of its core operation encounter an environment very different from the quiescent, homogeneous environment in which detonations are typically studied. In this case, injection creates substantial turbulence ahead of the wave and shear layers between fresh reactants and recently combusted products create turbulent structures that interact with the propagation of the wave. To tackle this harsh environment, more knowledge must be developed about the fundamental structure of detonation waves, especially for detonations with an irregular structure since the most likely candidate fuels would produce such a wave.
This proposal seeks to both study environments representative of the operation of an RDE as well as probe the internal structure of detonation waves to reveal its fundamental scales. A novel experiment is devised in which a plane detonation wave interacts in a grazing fashion with a sheet of turbulence of a controlled intensity. The conditions and manner in which the propagation dynamics of regular and irregular detonation waves are influenced will be studied using a combination of this new experimental configuration and numerical simulations of this same experimental setup.
In conjunction with the exploration of the interaction of a detonation wave with an outside source of vortical motion, this proposal lays the foundation for a careful examination of the role of self-generated turbulence within the detonation structure itself. This is done by departing from the currently used averaging methods and, instead, employing a sampling method in which a large number of Lagrangian particles are followed through the detonation structure. This method will be implemented on numerical simulations of the Euler and Navier-Stokes equations. Using Lagrangian sampling information about the dependence of reaction rates on turbulent mixing can be inferred and implemented in next-generation engineering models of detonation waves.
爆震波是一种非常快速、高压和高温的现象,在这种现象中,冲击波最初会引发化学反应。它们的剧烈性质使它们成为一个令人感兴趣的主题,无论是从缓解的角度来看,工业环境都会因这种波浪的意外形成而遭到破坏,还是高效率、先进推进系统的基石。该提案最感兴趣的是前者,最近开始以旋转爆轰发动机(RDE)的形式实现。考虑到装置的连续运行,作为其核心操作一部分的爆震波遇到的环境与通常研究爆震的静态均匀环境非常不同。在这种情况下,注入在波前产生了大量的湍流,新鲜反应物和最近燃烧产物之间的剪切层产生了湍流结构,与波的传播相互作用。为了应对这种恶劣的环境,必须开发更多关于爆震波基本结构的知识,特别是对于具有不规则结构的爆震波,因为最有可能产生这种波的候选燃料。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Kiyanda, Charles其他文献
Kiyanda, Charles的其他文献
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{{ truncateString('Kiyanda, Charles', 18)}}的其他基金
Fundamental Detonation Characteristics and their Influ- ence in Rotating Detonation Engines
旋转爆震发动机的基本爆震特性及其影响
- 批准号:
RGPIN-2018-06710 - 财政年份:2022
- 资助金额:
$ 1.97万 - 项目类别:
Discovery Grants Program - Individual
Fundamental Detonation Characteristics and their Influ- ence in Rotating Detonation Engines
旋转爆震发动机的基本爆震特性及其影响
- 批准号:
RGPIN-2018-06710 - 财政年份:2021
- 资助金额:
$ 1.97万 - 项目类别:
Discovery Grants Program - Individual
Fundamental Detonation Characteristics and their Influ- ence in Rotating Detonation Engines
旋转爆震发动机的基本爆震特性及其影响
- 批准号:
RGPIN-2018-06710 - 财政年份:2019
- 资助金额:
$ 1.97万 - 项目类别:
Discovery Grants Program - Individual
Fundamental Detonation Characteristics and their Influ- ence in Rotating Detonation Engines
旋转爆震发动机的基本爆震特性及其影响
- 批准号:
RGPIN-2018-06710 - 财政年份:2018
- 资助金额:
$ 1.97万 - 项目类别:
Discovery Grants Program - Individual
Fundamental Detonation Characteristics and their Influ- ence in Rotating Detonation Engines
旋转爆震发动机的基本爆震特性及其影响
- 批准号:
DGECR-2018-00035 - 财政年份:2018
- 资助金额:
$ 1.97万 - 项目类别:
Discovery Launch Supplement
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Discovery Grants Program - Individual