The European Physical Journal Applied Physics

Table of Contents - December 2000 - Volume 12, Issue 03  

Research Article

Numerical modeling of superparamagnetic sub-micronic particles trajectories under the coupled action of 3D force fields*

P. Phama1, P. Masséa2 and J. Berthiera2

Equipe Commune LETI/bioMérieux, DSYS, CEA, 38054 Grenoble Cedex 9, France

LETI (CEA-Technologies Avancées), DSYS-CSI, 38054 Grenoble Cedex 9, France

Abstract

Trajectories of superparamagnetic sub-micronic particles submitted to a multi-force field are modeled numerically by a Finite Element Method. The first step is the computation of the magnetic forces and the carrier fluid velocity field, the second step is the computation of the trajectories using a Finite Difference Method with a predictor-corrector scheme.

(Received May 23 2000)

(Revised September 22 2000)

(Accepted September 28 2000)

(Online publication December 15 2000)

PACS:

  • 02.70.Dh – Finite-element and Galerkin methods;
  • 85.70.Ay – Magnetic device characterization, design, and modeling;
  • 82.70.Kj – Emulsions and suspensions

pascale.pham@cea.fr

Footnotes

*  This paper has been presented at NUMELEC 2000.