2010 Fiscal Year Final Research Report
Supersonic Streamwise Vortices Breakdown and Its Application for Supersonic Mixing
| Project/Area Number |
20560739
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | Osaka Prefecture University |
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Principal Investigator |
ARAI Takakage Osaka Prefecture University, 工学研究科, 教授 (10175945)
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| Co-Investigator(Kenkyū-buntansha) |
SAKAUE Shoji 大阪府立大学, 工学研究科, 助教 (70244655)
HIEJIMA Toshihiko 大阪府立大学, 工学研究科, 助教 (60316007)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 超音速混合 / 超音速縦渦 / スクラムジェット / 不安定性 / 渦崩壊 |
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| Research Abstract |
For supersonic mixing enhancement, large scale streamwise vortices seem to be the most advantageous. In SCRAM jet (supersonic combustion ramjet) engine, the device which introduces both the large scale streamwise vortices and fuel into supersonic flow needs to be installed on the chamber wall to alleviate the heavy aerodynamic and heat load, so that, it must have the high ability to mix the fluids in near-wall and chamber center regions efficiently. In the present study, we made effort to clarify the mixing performance of such wall-mounted ramp injectors and flow field including the breakdown process of supersonic streamwise vortices.
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