Response of generic swirl flames to transverse acoustic forcing

一般旋涡火焰对横向声强迫的响应

• 批准号: 175585448
• 负责人: Professor Dr.-Ing. Christian Oliver Paschereit
• 金额: --
• 依托单位: Fachgebiet Experimentelle Strömungsmechanik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/175585448?language=en
• 关键词: Response; generic; swirl; flames; transverse

This project deals with experimental investigations on the response of a swirl-stabilized premixed flame to transverse acoustic forcing conducted on a specialized transverse acoustic forcing test-rig. The motivation behind the proposed study is to probe into the complex physics governing flow-flame-acoustics interaction. In addition to providing insights into a fundamental physical interaction that exists in nature and which has attracted significant scientific interest in the past, the study will also provide information crucial to dealing with the issue of thermoacoustic instability in modern annular gas turbine engines. The proposed methodology involves studying the effect of various possible configurations of transverse acoustic forcing on the swirl flame operated at a range of control parameters, chosen critically to identify the importance of individual physical processes involved in the interaction. The investigations are based on experiments involving detailed flow and flame diagnostics. Briefly stated, quantification of flame response to transverse forcing and establishing physical mechanisms that govern flame response constitute the aims of the project.

本计画是在一个专门的横向声强迫实验台上，进行旋流稳定预混火焰对横向声强迫响应的实验研究。提出的研究背后的动机是探讨复杂的物理控制流火焰声相互作用。除了提供深入了解存在于自然界中的基本物理相互作用，并在过去吸引了大量的科学兴趣，这项研究还将提供信息，处理现代环形燃气涡轮机发动机的热声不稳定性的问题至关重要。所提出的方法包括研究各种可能的配置的横向声学强迫的旋流火焰在一系列的控制参数，严格选择，以确定参与相互作用的各个物理过程的重要性的影响。调查是基于实验，涉及详细的流量和火焰诊断。简而言之，量化火焰对横向强迫的反应和建立控制火焰反应的物理机制构成了该项目的目标。

项目成果

Combustion Instability in a Swirl Flow Combustor With Transverse Extensions

• DOI: 10.1115/gt2013-95732
• 发表时间: 2013-06
• 作者: Aditya Saurabh;C. Paschereit

Swirl Flame Response to Simultaneous Axial and Transverse Velocity Fluctuations

旋流火焰对同时轴向和横向速度波动的响应

• DOI: 10.1115/1.4035231
• 发表时间: 2017
• 期刊: Journal of Engineering for Gas Turbines and Power-transactions of The Asme
• 影响因子: 1.5
• 作者: Saurabh A;Moeck J. P;Paschereit C. O.
• 通讯作者: Paschereit C. O.

Swirl flow response to transverse and axial acoustic forcing

旋流对横向和轴向声力的响应

• DOI: 10.1299/jfst.2014jfst0059
• 发表时间: 2014
• 期刊: Journal of Fluid Science and Technology
• 影响因子: 0.8
• 作者: Saurabh A;Paschereit C. O.
• 通讯作者: Paschereit C. O.

Swirl Flame Response to Traveling Acoustic Waves

• DOI: 10.1115/gt2014-26829
• 发表时间: 2014-06
• 作者: Aditya Saurabh;Richard Steinert;J. Moeck;C. Paschereit