Floppy and Squishy:
Low-Reynolds number locomotion with deformable bodies and surfaces


by: Eric Lauga

Abstract


A variety of biologically relevant low-Reynolds number swimming
problems involve soft deformable surfaces. In this talk, I will
describe a few situations coupling the hydrodynamics of swimming
on small scales with elastic deformation. In particular, (a) I
will describe the swimming kinematics of elastic swimmers, (b) I
will show how to exploit the softness of external surfaces to
break the constraints of Purcell's scallop theorem and (c) I will
describe how the viscoelastic nature of the surrounding fluid can
affect swimming kinematics and energetics.