TY - JOUR
T1 - Scattering of biflagellate microswimmers from surfaces
AU - Lushi, Enkeleida
AU - Kantsler, Vasily
AU - Goldstein, Raymond E.
N1 - Funding Information:
We thank M. Contino, J. Dunkel, K. Leptos, M. Polin, and I. Tuval for many helpful discussions. This work was supported in part by an Established Career Fellowship from the Engineering and Physical Sciences Research Council (REG).
Publisher Copyright:
© 2017 authors. Published by the American Physical Society.
PY - 2017/8/10
Y1 - 2017/8/10
N2 - We use a three-bead-spring model to investigate the dynamics of biflagellate microswimmers near a surface. While the primary dynamics and scattering are governed by geometric-dependent direct contact, the fluid flows generated by the swimmer locomotion are important in orienting it toward or away from the surface. Flagellar noise and in particular cell spinning about the main axis help a surface-trapped swimmer escape, whereas the time a swimmer spends at the surface depends on the incident angle. The dynamics results from a nuanced interplay of direct collisions, hydrodynamics, noise, and the swimmer geometry. We show that to correctly capture the dynamics of a biflagellate swimmer, minimal models need to resolve the shape asymmetry.
AB - We use a three-bead-spring model to investigate the dynamics of biflagellate microswimmers near a surface. While the primary dynamics and scattering are governed by geometric-dependent direct contact, the fluid flows generated by the swimmer locomotion are important in orienting it toward or away from the surface. Flagellar noise and in particular cell spinning about the main axis help a surface-trapped swimmer escape, whereas the time a swimmer spends at the surface depends on the incident angle. The dynamics results from a nuanced interplay of direct collisions, hydrodynamics, noise, and the swimmer geometry. We show that to correctly capture the dynamics of a biflagellate swimmer, minimal models need to resolve the shape asymmetry.
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U2 - 10.1103/PhysRevE.96.023102
DO - 10.1103/PhysRevE.96.023102
M3 - Article
C2 - 28950627
AN - SCOPUS:85028858886
SN - 1063-651X
VL - 96
JO - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
JF - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
IS - 2
M1 - 023102
ER -