主催: 日本学術会議 「機械工学委員会，土木工学・建築学委員会合同IUTAM分科会」
共催: 応用物理学会, 化学工学会, 自動車技術会, 地盤工学会, 土木学会, 日本応用数理学会, 日本風工学会, 日本機械学会, 日本気象学会, 日本計算工学会, 日本計算数理工学会, 日本建築学会, 日本原子力学会, 日本航空宇宙学会, 日本混相流学会, 日本地震工学会, 日本数学会, 日本船舶海洋工学会, 日本伝熱学会, 日本物理学会, 日本流体力学会, 農業農村工学会
We perform a numerical calculation of bioconvection to investigate the relationship between the aspect ratio of the convection cell and Prandtl and Rayleigh number. The aspect ratio of the convection cell becomes large as Prandtl number becomes large. With respect to temporal change in bioconvection, the flow can be classified into three states (steady, unsteady, collapse). Comparing bioconvection to the bubble convection that is a kind of particle-driven convection, there is a similarity that steady and unsteady-state can be divided by Prandtl number, while the difference is observed in the presence of the collapse pattern.
