Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Comparison and Enhancement of Turbulence Models Through Pipes Using Wall Functions
Submission Author:
Umberto Costa Bitencourt , RJ
Co-Authors:
Umberto Costa Bitencourt, Isabela Florindo Pinheiro
Presenter: Umberto Costa Bitencourt
doi://10.26678/ABCM.COBEM2021.COB2021-0419
Abstract
A comparison investigation is proposed in this paper through the study and prediction of the pressure drop along a circular pipe by means of different turbulence models. In this study, the performance of the Prandtl’s Mixing Length and the k-ε model are studied in an incompressible fully developed turbulent pipe flow, where the equations derived in the former are implemented with a MATLAB code, while the latter is carried out by the ANSYS Fluent software. For both models, wall functions are brought into play to improve their accuracy. Furthermore, as a way of comparing and validating the results, the Colebrook’s equation for the Darcy’s friction factor will be taken as a reference.
Keywords
turbulent flows, Wall Functions, Turbulence Models, ANSYS Fluent, Mixing length
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