2013 Fiscal Year Final Research Report
Simulation study of the swimming in a granular bed
| Project/Area Number |
24740257
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SHIMADA Takashi 東京大学, 工学(系)研究科(研究院), 助教 (90431791)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 粉体 / 分子動力学シミュレーション / 集団現象 / レオロジー / 非線型 / 国際情報交換（スイス） |
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| Research Abstract |
The motion of a ``swimmer'' in a granular bed, which sometimes behaves as a solid and sometimes as a fluid, is studied using a molecular dynamics simulation. In particular, it is found that there is an optimum shape of the swimmer to change its swimming direction. It is also found that an effective repulsive interaction acts between the two swimmers moving next to each other. This interaction strongly depends on whether the motions of the two swimmers are in synchronization.
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