The effects of near-field hydrodynamic interactions on collective dynamics of microorganisms
| Project/Area Number |
26400425
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Biological physics/Chemical physics/Soft matter physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Furukawa Akira 東京大学, 生産技術研究所, 准教授 (20508139)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | アクティブマター / ソフトマター / 流体力学的相互作用 / レオロジー / コロイド / 微生物 |
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| Outline of Final Research Achievements |
In this project, I studied the effects of near-field hydrodynamic interactions (HIs) on the collective dynamics of model active suspensions and found the following: When the separation between swimmers is comparable to their size, the swimmers' motions are strongly affected by activity-induced hydrodynamic forces. With HIs, the dynamic clustering is enhanced at a relatively small volume fraction, which can be attributed to the active force induced hydrodynamic trapping of one swimmer by another. In this relation, I also studied the role of HIs on the colloidal gelation and the nonlinear rheology in high density glassy liquids.
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Report
(4 results)
Research Products
(12 results)
