2019
Experimental Study on Shortening Deflagration-to-Detonation Transition by Nanosecond Pulsed Laser Ignition
流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム講演集(CD-ROM)
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- Volume
- 51st-37th
- Number
- DOI
- 10.2514/6.2019-3872
The effect of the ignition position of laser ignition and the initial pressure to the deflagration-to-detonation transition distance and to the early stage of flame propagation in pulse detonation combustor is evaluated by Schlieren visualization method using Nd:YAG laser. Changing these two parameters under pre-mixed, stoichiometric, static ethylene – oxygen gas, it is found that laser ignition can generate strong spherical blast wave before the combustion wave, that igniting at the center of the combustor can form more reflected shock wave’s jumbled area which intrigues flame acceleration, and that flame decelerates before the spherical flame reaches the combustor walls and accelerates after its reflection.
- Link information
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- DOI
- https://doi.org/10.2514/6.2019-3872
- J-GLOBAL
- https://jglobal.jst.go.jp/en/detail?JGLOBAL_ID=201902217166720441
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85095966116&origin=inward
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85095966116&origin=inward
- ID information
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- DOI : 10.2514/6.2019-3872
- J-Global ID : 201902217166720441
- SCOPUS ID : 85095966116