2010 Fiscal Year Final Research Report
Repetitive Pulse Detonation by Laser Ablation Induced Liquid Jet
| Project/Area Number |
20360383
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Aerospace engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
NAGAYAMA Kunihito Kyushu University, 名誉教授 (20040446)
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| Co-Investigator(Kenkyū-buntansha) |
西山 貴史 九州大学, 助教 (80363381)
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| Co-Investigator(Renkei-kenkyūsha) |
梶原 隆司 九州大学, 技術職員 (80423507)
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| Project Period (FY) |
2008 – 2010
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| Keywords | アブレーション / 瞬間写真観測 / 液体ジェット / 微粒化 / デトネーション |
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| Research Abstract |
Present study is an extension of our previous study concerning appreciable reduction of laser ablation threshold fluence of transparent material interface. This effect is laser direction dependent. For transparent fluid combinations, it is found that laser ablation is followed by high-speed liquid jet with very fast slow down due to very fast atomization at the jet tip. It is shown that this phenomenon depend on fluence, energy, and beam profile. We obtained characteristic atomization process depending on energetic liquid material properties.
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