Abstract
The aim of this work is the design of an efficient method to obtain information about a finite number of small and well-separated liquid particles located in a viscous fluid from boundary measurements. The viscosity and density of particles are different from those of a background fluid governed by a Stokes flow. An asymptotic formula for the velocity perturbation is derived based on the concept of Viscous Moment Tensor analysis. This formula will be the principle for efficient computational algorithms of identification. (C) 2015 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.