2010 Fiscal Year Final Research Report
Development of active control system for self-sustained oscillating flows over cavity by direct numerical simulation.
| Project/Area Number |
20560153
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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 |
Fluid engineering
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| Research Institution | Shinshu University |
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Principal Investigator |
YOSHIDA Takashi Shinshu University, 工学部, 准教授 (90262857)
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| Co-Investigator(Renkei-kenkyūsha) |
WATANABE Takashi 名古屋大学, 情報科学研究科, 教授 (40182927)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 数値流体力学 |
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| Research Abstract |
We investigate the control of self-sustained oscillating flows over an open cavity using a moving bottom wall. The three-dimensional incompressible Navier-Stokes equations are solved by direct numerical simulation. A series of simulation are performed for a variety of bottom wall velocity. The results show that velocity fluctuations and pressure fluctuations are suppressed due to the moving bottom wall of cavity. The control method by moving bottom wall can suppress self-sustained oscillating flows over cavity.
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