Development of Numerical Flow Analysis Method for Suspension of Bio-Particles as a Complex Fluid

2015 Fiscal Year Final Research Report

• Project/Area Number: 25289032
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: Osaka University
• Principal Investigator: Yamamoto Takehiro 大阪大学, 工学(系)研究科(研究院), 准教授 (40252621)
• Co-Investigator(Renkei-kenkyūsha): KOSHIBA Takashi 奈良工業高等専門学校, 機械工学科, 教授 (00215237)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 複雑流体 / 微生物 / 能動粒子 / 数値計算

Outline of Final Research Achievements

We considered microorganisms as active particles that have self-propelling ability, and modeled their dispersion systems by suspensions of active particles. Then we applied several methods of numerical analysis and modeling for complex fluids to present novel numerical models for microorganism dispersion systems. In the present study, the flow of suspensions of phototactic microalgae were numerically analyzed by both continuum and particle-based approaches. In these analyses, both channel flows and bio convection were investigated. Furthermore, we studied a biomimetic control of flow-induced structures using leader particles and growth phenomena of biofilm under flows.

Free Research Field

非ニュートン流体力学