Dynamics of a deformable self-propelled particle under external forcing

Abstract

We investigate dynamics of a self-propelled deformable particle under external field in two dimensions based on the model equations for the center of mass and a tensor variable characterizing deformations. We consider two kinds of external force. One is a gravitational-like force which enters additively in the time-evolution equation for the center of mass. The other is an electric-like force supposing that a dipole moment is induced in the particle. This force is added to the equation for the deformation tensor. It is shown that a rich variety of dynamics appears by changing the strength of the forces and the migration velocity of self-propelled particle.

References in corpus (8)

• Active Motion of Janus Particle by Self-thermophoresis in Defocused Laser Beam
• Sedimentation, trapping, and rectification of dilute bacteria
• Persistent Cell Motion in the Absence of External Signals: A Search Strategy for Eukaryotic Cells
• Mode Selection in the Spontaneous Motion of an Alcohol Droplet
• Swimming speeds of filaments in nonlinearly viscoelastic fluids
• Dumb-bell swimmers
• Cortical Factor Feedback Model for Cellular Locomotion and Cytofission
• A simple self-organized swimmer driven by molecular motors

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