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

Published online by Cambridge University Press:  15 December 2000

P. Pham ,
P. Massé  and
J. Berthier
P. Pham*
Affiliation:
Equipe Commune LETI/bioMérieux, DSYS, CEA, 38054 Grenoble Cedex 9, France
P. Massé
Affiliation:
LETI (CEA-Technologies Avancées), DSYS-CSI, 38054 Grenoble Cedex 9, France
J. Berthier
Affiliation:
LETI (CEA-Technologies Avancées), DSYS-CSI, 38054 Grenoble Cedex 9, France
*
[email protected]
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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.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 12 , Issue 3 , December 2000 , pp. 211 - 216
Copyright
© EDP Sciences, 2000

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Footnotes

*

This paper has been presented at NUMELEC 2000.

References

Scientific and Clinical Applications of Magnetic Carriers, J. Magn. Magn. Mater. 194 (1999).
R. Gerber, R.R. Birss, High Gradient Magnetic Separation, Research Studies Press, ISBN 0 471 90162 8, 1983, p. 61.
Lawson, W.F., Treat, R.P., The dynamic of a particle attracted by a magnetized wire, J. Appl. Phys. 48, 3213 (1977). CrossRef
Watson, J.H.P., Magnetic filtration, J. Appl. Phys. 44, 4209 (1973). CrossRef