Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
A SIMPLE APPROACH TO THE VORTICES SIMULATION FOR ELECTRO-OSMOTIC FLOW IN A NOZZLE
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.COBEM2019.COB2019-0526
Abstract
Electro-osmotic flow was studied by using of numerical simulations in a nozzle. Flow through nozzles may be useful to performing fluid mixing. In this work, we propose a numerical approximation to perform vortex simulation which occur after the flow passes through the contraction in the nozzle. The motion of the charges in the solution is described by the Poisson-Nernst-Planck equations and we used the generalized finite differences to solve the numerical problem. Solutions for electro-osmotic flow were obtained for the Phan-Thien/Thanner model. Simulations for electro-osmotic flow were performed in a nozzle. Vortex formation was verified by take into account a punctual charge perturbation model. This perturbation was proposed in this work in order to operate on a particular neighborhood near the corners. The results are discussed.
Keywords
Finite Differences, electro-osmotic, Nozzle
