High gradient magnetic particle separation in a channel with bifurcations

Zadravec, M., Hriberšek, M., Steinmann, P. and Ravnik, J. (2014) High gradient magnetic particle separation in a channel with bifurcations. Engineering Analysis with Boundary Elements, 49, pp. 22-30. (doi: 10.1016/j.enganabound.2014.04.012)

Abstract

Micro particle separation from solid–liquid suspension under the influence of hydrodynamic and magnetic forces in a channel with bifurcation is studied numerically by applying the Boundary Element Method based fluid flow solver. The particle trajectories are computed using the Lagrangian particle tracking, where the forces on particles are computed based on the point particle representation. In the separator due to the bifurcation channel geometry the magnetic particles experience varying Kelvin force as they travel along the channel, although in the same direction the high gradient magnetic field does not change. In this way, the interplay of hydrodynamic and magnetic forces leads to changes in collection efficiency of the separator. A comparison with magnetic separation in the narrow channel design is done and recommendation for optimal choice of fluid flow rate and magnitude of external magnetic field is discussed.

• Item Type: Articles
• Additional Information: The work has been performed under the HPC-EUROPA2 project (Project number: 228398) with the support of the European Commission - Capacities Area - Research Infrastructures.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Steinmann, Professor Paul
• Authors: Zadravec, M., Hriberšek, M., Steinmann, P., and Ravnik, J.
• College/School: College of Science and Engineering > School of Engineering > Infrastructure and Environment
• Journal Name: Engineering Analysis with Boundary Elements
• Publisher: Elsevier
• ISSN: 0955-7997
• ISSN (Online): 1873-197X
• Published Online: 20 March 2014