壁面近傍での細菌運動の定性的説明(J07-1 生物の運動機能/バイオミメティクスとバイオメカニクス/バイオロボティクスとバイオメカトロニクス(1),J07 生物の運動機能/バイオミメティクスとバイオメカニクス/バイオロボティクスとバイオメカトロニクス)

概要

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The mechanism of peculiar motion of single polar flagellated bacteria swimming close to a wall is investigated. Recent observations have revealed that, when the bacterium swims close to the wall, it swims backward along a curved path and forward straightly. Furthermore, the speeds of forward and backward motions are different despite of that associating inertial forces are negligible. Numerical results of boundary element analyses show that these phenomena are mainly due to fluid dynamic effect of the wall which induces the difference in pitching stability between the forward and backward motions, that is, forward motion is stable, backward unstable.
一般社団法人日本機械学会の論文
2004-09-04