Ulpa particle separation model in a spiral classifier

Numerical Simulation of Particle Separation in the Fluid Flow in a Microchannel Including Spiral and Acoustic Regions

Particulate separation has many applications in medicine, biology and industry. In this research, the separation of polystyrene particles with a diameter of 10, 20 and 30 μm in the fluid flow of a microchannel is investigated. The microchannel consists of a spiral region and a straight region under the influence of acoustic waves. In the spiral region, the particles under hydrodynamic effects u...

Inertial microfluidics for continuous particle separation in spiral microchannels.

In this work we report on a simple inertial microfluidic device that achieves continuous multi-particle separation using the principle of Dean-coupled inertial migration in spiral microchannels. The dominant inertial forces coupled with the Dean rotational force due to the curvilinear microchannel geometry cause particles to occupy a single equilibrium position near the inner microchannel wall....

Self-similar two-particle separation model

Sperm Cell Separation Using a Spiral Channel

This work presents a specifically designed spiral type inertial micro-fluidic channel for separating non-motile sperm cell from cellular debris. Demonstration with a mixture of non-motile sperm and red blood cells showed that 82% of sperm could be focused into a separate outlet from the red blood cells.

Continuous particle separation in spiral microchannels using Dean flows and differential migration.

Microparticle separation and concentration based on size has become indispensable in many biomedical and environmental applications. In this paper we describe a passive microfluidic device with spiral microchannel geometry for complete separation of particles. The design takes advantage of the inertial lift and viscous drag forces acting on particles of various sizes to achieve differential mig...