Analysis of the formation mechanism of the hierarchical flow structure in biofluid mechanics
Project/Area Number |
26400396
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Mathematical physics/Fundamental condensed matter physics
|
Research Institution | Hiroshima University |
Principal Investigator |
Iima Makoto 広島大学, 理学研究科, 准教授 (90312412)
|
Co-Investigator(Kenkyū-buntansha) |
横山 直人 京都大学, 工学研究科, 助教 (80512730)
|
Project Period (FY) |
2014-04-01 – 2017-03-31
|
Project Status |
Completed (Fiscal Year 2016)
|
Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
Keywords | 生物対流 / 生物流体力学 / 流れ構造 / 微生物遊泳 |
Outline of Final Research Achievements |
We investigated the relationship between information processing of Euglena and the hierarchical flow structure caused by individuals and their collective motion. A number density flux was suggested proportional to the intensity of the optical gradient. This result was incorporated to construct a model equation of localized bioconvection. This equation reproduces the localized bioconvection as well as the bistability of the state, which is suggested by the experiments. For flapping flight, we developed a method to describe the behavior of separation vortices in a low-dimensional dynamical system by using the single vortex approximation.
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Report
(4 results)
Research Products
(31 results)