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A computational approach that couples molecular-dynamics (MD) and the-finite-element-method (FEM) technique is here proposed for the theoretical study of the dynamics of particles subjected to electromechanical forces. The system consists of spherical particles (modeled as micrometric rigid bodies with proper densities and dielectric functions) suspended in a colloidal solution, which flows in a microfluidic channel in the presence of a generic nonuniform variable electric field generated by electrodes. The particles are subjected to external forces (eg, drag or gravity) which satisfy a particlelike formulation that is typical of the MD approach, along with an electromechanical force that, in turn, requires the three-dimensional self-consistent solutions of correct continuum field equations during the integration of the equations of motion. In the MD-FEM method used in this work, the finite element method is applied to …
American Physical Society
Publication date: 
17 Jun 2019

Michele Cascio, Davide Baroli, Stephane Bordas, Ioannis Deretzis, Giuseppe Falci, Antonino Magliano, Antonino La Magna

Biblio References: 
Volume: 99 Issue: 6 Pages: 063307
Physical Review E