 Surface slip velocity

ID: surface-slip-velocity

Codex  0 Created 2026-09-24 Updated 2026-10-06

The surface slip velocity is the fluid velocity relative to the rigid motion of an active particle at its boundary. For a spherical force-free, torque-free swimmer of radius

a

with slip

u_{s}

V = - \frac{1}{4 π a ^{2}} \int_{r = a} u_{s} d S, ω = - \frac{3}{8 π a ^{4}} \int_{r = a} x \times u_{s} d S .

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