2010 Fiscal Year Final Research Report
Mechanism of Stationary Shock Wave Instability and Its Application
| Project/Area Number |
21760116
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Fluid engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
OHNISHI Noafumi 東北大学, 大学院・工学研究科, 准教授 (20333859)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 数値流体力学 / 流体力学的不安定性 / 衝撃波 / 超新星爆発 / 造波抵抗低減 |
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| Research Abstract |
Three-dimensional numerical simulations were conducted using the discontinuous Galerkin (DG) finite-element method to clarify mechanism of bow-shock instability, which has been experimentally observed for a blunt body. The most favorable flux functions and numerical conditions were explored through the comparisons among them. Laser energy deposition that leads to a low-density region ahead of a bow shock was investigated for reducing the wave drag, and the effect of laser input condition was clarified with our developed code.
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