Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
NUMERICAL ANALYSIS OF NEWTONIAN FLUID FLOW VARYING THE CONTRACTION GEOMETRY USING OPENFOAM
Submission Author:
João Pedro Costa Eliziário , PR , Brazil
Co-Authors:
João Pedro Costa Eliziário, andrevidy honório, Marcos Lourenço, Elie Luis Martínez Padilla
Presenter: Elie Luis Martínez Padilla
doi://10.26678/ABCM.COBEM2019.COB2019-2063
Abstract
Newtonian fluid flow are seen in many engineering applications, thus many works have been performed in this area in order to understanding characteristics of this type of flow and optimize industry processes. Due to this, there are many works involving flow in a sudden contraction for commom contraction geometries. In these works are analyzed velocity fields, pressure drops and vortex formation just varying the contraction ratio. In this work was studied how the contraction geometry variation impacts in the previously mentioned phenomena. The laminar, incompressible and axisymmetric flow is modeled by the mass and momentum conservation equation and the method deployed to solve these equations is the Finite Volume Method (FVM) which is a method wide used in fluid flow problems. The mesh used in this work is a block-structured mesh and is simulated just a geometry slice with the OpenFOAM tool called Wedge .Therefore, to vary the contraction geometry is used a tool called spline and the mesh was constructs in Python in order to automate it. In conclusion, are presented results of pressure loss, velocity fields and vortex characteristics through graphs and color scale and through comparing results for the two different geometries.
Keywords
Sudden Contraction, Newtonian, Finite Volume Method.
