Numerical analysis of effects of gravity modulation on bioconvection generated by chemotactic bacteria in microgravity environments

Research Project

Project/Area Number	24560181
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Fluid engineering
Research Institution	Iwate University
Principal Investigator	YANAOKA Hideki 岩手大学, 工学部, 教授 (40281951)
Co-Investigator(Kenkyū-buntansha)	SUENAGA Yosuke 岩手大学, 工学部, 助教 (60413720)
Project Period (FY)	2012-04-01 – 2015-03-31
Project Status	Completed (Fiscal Year 2014)
Budget Amount *help	¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000) Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords	生物対流 / バクテリア / 酸素 / 走化性 / 計算流体力学 / 微生物 / 微小重力 / 生物流体
Outline of Final Research Achievements	Numerical simulations were carried out modeling the bioconvection generated by chemotactic bacteria in microgravity environments with gravity modulation, and the transport characteristics were examined. When the gravity modulation acts on the steady suspension of bacterial cells, the bioconvection occurs, and the three-dimensional plumes and bioconvection pattern are generated. The increase of interference between the plumes enhances transport characteristics. These results don't clarify in the previous results.

Report

(4 results)