Orateur
Abderrahmane BENDALI
(INSA Toulouse)
Description
Usual Foldy's model is used to approximate a multiple
scattering problem involving small scatterers by monopole
scatterers. Using the method of matched asymptotic expansions, with
P. H. Cocquet and S. Tordeux, we have first proved that the scattered
field can be approximated at any order of accuracy by multipoles.
This first provides a mathematical justification for the Foldy model
and next makes it possible to improve it by adding some
self-interaction terms and adequately choosing the centers of phase of
the effective monopoles.
Auteur principal
Abderrahmane BENDALI
(INSA Toulouse)
