Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
INFLUENCE OF REYNOLDS NUMBER IN THE REGION OF FLOW DEVELOPMENT IN BIFURCATIONS
Submission Author:
Flavio Peres Amado , RJ , Brazil
Co-Authors:
Flavio Peres Amado, Victor Hugo Mondaini Corradi, Pablo Vergara, Narcisio Gregory Santos Mazzarella, Wesley de Abreu da Silva
Presenter: Flavio Peres Amado
doi://10.26678/ABCM.COBEM2019.COB2019-0012
Abstract
The region of flow development in bifurcation was studied in previous works presented by the author in the events CONEM 2018 and ENCIT 2018. The objective was to find an expression that could predict the length, as a function of flow parameters, channel dimensions and fork angles. At this point, the aim is to advance in the state of the art by checking the influence of the Reynolds number on the extension of that region, varying the viscosity and the density of the fluid, keeping the flow rate constant. The equations proposed in the aforementioned manuscripts were tested by comparing the calculated values with those raised employing a CFD technique, which used the finite difference method as well as a commercial package. The results obtained allow to conclude that the proposed equation for prediction of lengths as a function of the flow rate was better suited to the majority of the simulation results than the wide aspect equation, except for low-viscosity hydraulic oils where the broad-spectrum equation behaved a little better. The present work concludes a study cycle of the developing flow region in bifurcations and the results achieved shall be used in future models for predicting the extension of the thermal developing region.
Keywords
Bifurcations, flow development
