らせん状べん毛を有する微生物の最適形状 : 流体工学 , 流体機械

概要

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The motion of microorganism with a flagellum is investigated with a view to applying its propulsion mechanism to the hydrodynamic driving of micro machines in future. Using the boundary element method in the Stokes flow, the speed of advance and the power consumption of the microorganism are numerically determined. Optimizations are done on six non-dimensional parameters that describe the shape of the flagellum and two non-dimensional parameters that represent the shape of the cell body. The optimum shape agrees well with the shape of the actual microorganism except for the cross-sectional shape of the flagellum. Low power consumption and high speed of advance are predicted when the cross section of the flagellum is elliptic with its major axis in the radial direction of the flagellum spiral.
社団法人日本機械学会の論文
2001-03-25