Fully resolved simulations of rigid particle focusing in serpentine microfluidic devices

This study employs a Lattice Boltzmann-based fluid-structure interaction framework to investigate how channel geometry, particle properties, and flow regimes affect inertial migration and secondary flows in curved microchannels. After validation against benchmark cases, the work reports, for the first time, fully resolved numerical simulations of multiple-particle focusing in realistic serpentine microchannel geometries.