Numerical simulations of deformable systems in flowing media

di

Massimiliano M. Villone

Fridericiana Editrice Universitaria

Numerical simulations of deformable systems in flowing media - Bookrepublic

Numerical simulations of deformable systems in flowing media

di

Massimiliano M. Villone

Fridericiana Editrice Universitaria

FORMATO

Adobe DRM

DISPOSITIVI SUPPORTATI

computer

e-reader/kobo

ios

android

kindle

€ 5,99

Descrizione

Over the last 15 years, microfluidics has gained an increasing importance. In several microfluidic systems, as cytometric, sorting and diagnostic devices, suspensions of particles flow in miniaturized channels. In such a situation, a wide range of phenomena can arise due to the deformability and the elasticity of the suspended objects, the geometry of the channels, the interactions between the objects and the walls of the flow cells, and the complexity of the suspending media. Aim of the present thesis is of developing and applying a finite element method-based code to study the dynamics of soft systems suspended in Newtonian and viscoelastic fluids under flow. The code is developed by adapting and extending an arbitrary Lagrangian Eulerian finite element method based numerical code for viscoelastic fluids using well-known stabilization techniques (SUPG, DEVSS, log-conformation), and it is validated for drops and elastic particles in unbounded shear flow by comparison with available theoretical, experimental and numerical results. Then, a single-body problem is considered: the behavior of an initially spherical elastic particle suspended in confined shear flow of a Newtonian and a Giesekus viscoelastic liquid is studied. Finally, a multi-body system is investigated: the bulk linear viscoelastic properties of monodisperse emulsions of Newtonian drops in a Newtonian matrix are computed.

Dettagli

Dimensioni del file

2,0 MB

Lingua

eng

Anno

2018

Isbn

9788883381539

Informativa e consenso per l'uso dei cookie
Questo sito utilizza, fra gli altri, cookie tecnici, cookie di marketing generico anche di terze parti, cookie di profilazione di terze parti. I cookie servono a migliorare il sito stesso e l'esperienza di navigazione degli utenti. Per conoscere tutti i dettagli, può consultare la nostra cookie policy qui. Cliccando sul pulsante "Ho capito", accetta l’uso dei cookie.