Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
INCOMPRESSIBLE FLOW AT LOW REYNOLDS NUMBER IN A CONICAL ENTRANCE ORIFICE PLATE
Submission Author:
Wender Oliveira , MG
Co-Authors:
MARA NILZA ESTANISLAU REIS, Wender Oliveira, Pedro Américo Almeida Magalhães Júnior
Presenter: Wender Oliveira
doi://10.26678/ABCM.COBEM2019.COB2019-0328
Abstract
Incompressible flow at low Reynolds number has a very relevant application that includes the use of orifice plates as a device to determine the fluid flow rate in pipes. This work presents a study about the analysis of the discharge coefficient in orifice plates, using an experimental and numerical approach, the latter being through the Characteristics Method and also through the Finite Volumes Method. The work dealt with situations outside of those contained in the standards, mainly for the flow at low Reynolds number in pipes, the experiments were carried out in a flow bench capable of reproducing the phenomena inside the pipes and the numerical part was done through a one-dimensional software which uses the Method of Characteristics and another three-dimensional that performs the simulations using the Finite Volume Method. The results show that when the inertial effects are not taken into account for the determination of the coefficient of static discharge, the values of the discharge coefficient are higher than expected.
Keywords
orifice plate, Low Reynolds number, Incompressible Flow, Discharge Coefficient
