| Project/Area Number |
19560159
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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 | The University of Tokyo |
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Principal Investigator |
HAMBA Fujihiro The University of Tokyo, 生産技術研究所, 教授 (20251473)
|
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| Co-Investigator(Kenkyū-buntansha) |
横井 喜充 東京大学, 生産技術研究所, 助教 (50272513)
|
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| Co-Investigator(Renkei-kenkyūsha) |
YOKOI Nobumitsu 東京大学, 生産技術研究所, 助教 (50272513)
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| Project Period (FY) |
2007 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
|
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| Keywords | 電磁流体 / 乱流 / 乱流モデル / ダイナモ / 雷磁流体 |
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| Research Abstract |
It is known that dynamo mechanism exits which generates and sustains large-scale magnetic field against the turbulent diffusion. In this research a large eddy simulation of magnetohydrodynamic turbulent channel flow was carried out to investigate the dynamo effect. Statistics such as the mean magnetic field and the turbulent energy were evaluated and it was shown that the mean magnetic field is generated. Moreover, the production terms in the transport equation for the turbulent electromotive force were examined to show that the mean field generation is due to the dynamo effect of the cross-helicity (the correlation between the velocity and the magnetic field).
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