Mechanism of Stationary Shock Wave Instability and Its Application
Project/Area Number |
21760116
|
Research Category |
Grant-in-Aid for Young Scientists (B)
|
Allocation Type | Single-year Grants |
Research Field |
Fluid engineering
|
Research Institution | Tohoku University |
Principal Investigator |
OHNISHI Noafumi 東北大学, 大学院・工学研究科, 准教授 (20333859)
|
Project Period (FY) |
2009 – 2010
|
Project Status |
Completed (Fiscal Year 2010)
|
Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
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 / 弧状衝撃波 / 超音速飛行物体 / レーザー生成プラズマ |
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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Report
(3 results)
Research Products
(36 results)