Estudo sobre a dinâmica de fluidos computacional
No Thumbnail Available
Date
2021-06-17
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Universidade Católica do Salvador
Abstract
Computational fluid dynamics, or CFD, is a field that deals with the numerical simulation of fluid flows, heat
transfer and related phenomena, being able to calculate how operating conditions - temperature, pressure and
transport properties - in three-dimensional or two-dimensional space. In this way, there is a possibility of verifying
problems that a traditional simulation cannot map because it works with average parameters. This study aims to
explore the CFD and the equations involved, with a demonstration and a comparison between the k-epsilon model
and the SST (shear stress transport turbulence) using the ANSYS-CFD (FLUENT) tool - student license end to a
mixing Tee where enter a hot fluid (water) at a temperature of 363.15 K and a velocity of 3 m / s and a cold fluid
(water) at a temperature of 283.15 K and a velocity of 5 m / s thus doing a study on the behavior of the mixture.
To evaluate the proposed solution, a comparison of temperature and velocity parameters was performed for each
model and for each change made to the geometry. It was found that the k-e and SST model converged with a
criterion of 10e-6, the two models well represent the water flow along the mixing Tee, although the SST model
better represents the velocity vectors along the pipeline, despite from this the two models demonstrated confidence
in the temperature variation and the fluid displacement through the mixer. The worlds made on the geometry have
a satisfactory answer, thus making sure that the software is an interesting tool to perform simulations involving
fluid flow.
Description
Keywords
Simulação, Fluidodinâmica computacional, ANSYS, Simulation, Fluid dynamics computing