Stokesian dynamics of pill-shaped Janus particles with stick and slip boundary conditions

Abstract

We study the forces and torques experienced by pill-shaped Janus particles of different aspect ratios where half of the surface obeys the no-slip boundary condition and the other half obeys the Navier slip condition of varying slip lengths. Using a recently developed boundary integral formulation whereby the traditional singular behaviour of this approach is removed analytically, we quantify the strength of the forces and torques experienced by such particles in a uniform flow field in the Stokes regime. Depending on the aspect ratio and the slip length, the force transverse to the flow direction can change sign. This is a novel property unique to the Janus nature of the particles.

References in corpus (3)

• Active Motion of Janus Particle by Self-thermophoresis in Defocused Laser Beam
• Non-singular boundary integral methods for fluid mechanics applications
• Dynamics of a sphere with inhomogeneous slip boundary conditions in Stokes flow

Cited by in corpus (7)

• Boundary regularised integral equation formulation of the Helmholtz equation in acoustics
• A Robust Multi-Scale Field-Only Formulation of Electromagnetic Scattering
• Molecular dynamics simulations of the rotational and translational diffusion of a Janus rod-shaped nanoparticle
• Diffusion of a Janus nanoparticle in an explicit solvent: A molecular dynamics simulation study
• Boundary regularized integral equation formulation (BRIEF) of Stokes flow
• Helmholtz equation and non-singular boundary elements applied to multi-disciplinary physical problems
• A non-singular boundary element method for interactions between acoustical field sources and structures