Characterization of Rotating Detonation Engine Injector Response Using Laser-Induced Fluorescence

Bedick, Clinton; Ferguson, Don; Strakey, Peter

doi:10.2514/1.B37309

Title: Characterization of Rotating Detonation Engine Injector Response Using Laser-Induced Fluorescence

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Abstract

In this work, rotating detonation engine (RDE) fuel injector response was characterized in a lab-scale linear testing platform. The experimental design consists of a linear extrusion of an RDE cross section and allows rapid interchanging of modular, 3D printed inlet geometries. An array of helium jets was established within a channel, and a single combustion-driven shock pulse was presented at one end. The subsequent injector interruption and recovery were quantified using high-speed acetone planar-laser-induced fluorescence (PLIF). A quartz wall provided optical access to the channel and the injector response was visualized at up to 30 kHz. Three dynamic pressure transducers allowed the shock strength to be quantified along the length of the channel. Timescales associated with jet interruption and recovery were determined by analysis of instantaneous PLIF images and considered in conjunction with the dynamic pressure measurements. Finally, results are presented as a function of pertinent nondimensional parameters and compared with available experimental and computational data in a full, research-scale RDE.

Authors:

Bedick, Clinton ^[1]; Ferguson, Don ^[1]; Strakey, Peter ^[1]

National Energy Technology Lab. (NETL), Morgantown, WV (United States)

Publication Date:: 2019-04-25

Research Org.:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)

Sponsoring Org.:: USDOE Office of Fossil Energy (FE)

OSTI Identifier:: 1582391

Report Number(s):: NA
Journal ID: ISSN 0748-4658

Grant/Contract Number:: FE0004000

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Propulsion and Power

Additional Journal Information:: Journal Volume: 35; Journal Issue: 4; Journal ID: ISSN 0748-4658

Publisher:: American Institute of Aeronautics and Astronautics (AIAA)

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Bedick, Clinton, Ferguson, Don, and Strakey, Peter. Characterization of Rotating Detonation Engine Injector Response Using Laser-Induced Fluorescence.  United States: N. p., 2019. 
Web.  doi:10.2514/1.B37309.

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                    Bedick, Clinton, Ferguson, Don, & Strakey, Peter. Characterization of Rotating Detonation Engine Injector Response Using Laser-Induced Fluorescence.  United States.  https://doi.org/10.2514/1.B37309

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                    Bedick, Clinton, Ferguson, Don, and Strakey, Peter. Thu .  
"Characterization of Rotating Detonation Engine Injector Response Using Laser-Induced Fluorescence".  United States.  https://doi.org/10.2514/1.B37309.  https://www.osti.gov/servlets/purl/1582391.

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@article{osti_1582391,

  title        = {Characterization of Rotating Detonation Engine Injector Response Using Laser-Induced Fluorescence},

  author       = {Bedick, Clinton and Ferguson, Don and Strakey, Peter},

  abstractNote = {In this work, rotating detonation engine (RDE) fuel injector response was characterized in a lab-scale linear testing platform. The experimental design consists of a linear extrusion of an RDE cross section and allows rapid interchanging of modular, 3D printed inlet geometries. An array of helium jets was established within a channel, and a single combustion-driven shock pulse was presented at one end. The subsequent injector interruption and recovery were quantified using high-speed acetone planar-laser-induced fluorescence (PLIF). A quartz wall provided optical access to the channel and the injector response was visualized at up to 30 kHz. Three dynamic pressure transducers allowed the shock strength to be quantified along the length of the channel. Timescales associated with jet interruption and recovery were determined by analysis of instantaneous PLIF images and considered in conjunction with the dynamic pressure measurements. Finally, results are presented as a function of pertinent nondimensional parameters and compared with available experimental and computational data in a full, research-scale RDE.},

  doi          = {10.2514/1.B37309},

  journal      = {Journal of Propulsion and Power},

  number       = 4,

  volume       = 35,

  place        = {United States},

  year         = {2019},

  month        = {4}

}

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