Numerical Analysis of Transport Control in Bioconvection Generated by Chemotactic Bacteria

对趋化细菌产生的生物对流进行了数值模拟，并对其传输特性的控制进行了研究。细菌细胞的悬浮液包含在一个腔室中。当腔室下壁振动时，产生非定常生物对流，羽流周期性波动。从羽流的频率响应分析中发现，当羽流波长减小时，羽流间干涉的增加增强了输运特性。这些结果在之前的结果中没有得到澄清。

Numerical simulations were carried out modeling the bioconvection generated by chemotactic bacteria, and the control of transport characteristics was examined. A suspension of bacterial cells is contained in a chamber. When the lower wall of the chamber vibrates, unsteady bioconvection occurs, and the plume periodically fluctuates. It is found from the examination of frequency response of the plume that the increase of interference between the plumes enhances transport characteristics when the wavelength of plume decreases. These results don't clarify in the previous results.