Stokes flow in curved channels

Dean flow-coupled inertial focusing in curved channels.

Passive particle focusing based on inertial microfluidics was recently introduced as a high-throughput alternative to active focusing methods that require an external force field to manipulate particles. In inertial microfluidics, dominant inertial forces cause particles to move across streamlines and occupy equilibrium positions along the faces of walls in flows through straight micro channels...

Stokes flow in a junction of two-dimensional orthogonal channels

Weak imposition of the slip boundary condition on curved boundaries for Stokes flow

Article history: Received 16 January 2012 Received in revised form 27 April 2013 Accepted 19 August 2013 Available online 11 September 2013

Motion of large bubbles in curved channels

We study the motion of large bubbles in curved channels both semi-analytically using the lubrication approximation and computationally using a finite-volume/fronttracking method. The steady film thickness is governed by the classical Landau– Levich–Derjaguin–Bretherton (LLDB) equation in the low-capillary-number limit but with the boundary conditions modified to account for the channel curvatur...

Dean instability in double-curved channels.

We study the Dean instability in curved channels using the lattice Boltzmann model for generalized metrics. For this purpose, we first improve and validate the method by measuring the critical Dean number at the transition from laminar to vortex flow for a streamwise curved rectangular channel, obtaining very good agreement with the literature values. Taking advantage of the easy implementation...