Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
NUMERICAL SOLUTIONS OF ELECTRO-OSMOTIC NEWTONIAN/NON-NEWTONIAN FLUID FLOWS
Submission Author:
Wesley De Souza Bezerra , MS
Co-Authors:
Wesley De Souza Bezerra, Antonio Castelo, Alexandre Afonso
Presenter: Wesley De Souza Bezerra
doi://10.26678/ABCM.COBEM2017.COB17-0937
Abstract
The behavior of Newtonian and non-Newtonian fluids in microchannels was studied. To investigate the viscoelastic fluid flow, the constitutive rheological model of Phan-Thien-Tanner was used. Furthermore, electrokinetic effects will be analyzed and the full Phan-Thien-Tanner single mode was studied. The flow is influenced by the action of an applied external electric field and the behavior of this system as a whole studied through numerical simulations performed in a new system named HiG-Flow. For computations, the finite differences method is used and stabilization techniques were employed to solve the constitutive equation and then determine the solution of the fluid flow. The Debye-Hückel approach was applied to solve the electro-osmotic flow. The influence of the applied external field on the stress and velocity profile will shown and the results will be discussed.
Keywords
Finite Differences, HiG-Flow, Viscoelastic flow, Electro-osmotic flow
