Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
CONTINUOUS AND DISCRETE SOLUTION FOR A PLANE JET
Submission Author:
Gabriel Marcos Magalhães , MG
Co-Authors:
Gabriel Marcos Magalhães, Jessica Guarato de Freitas Santos, Aristeu Silveira Neto
Presenter: Gabriel Marcos Magalhães
doi://10.26678/ABCM.COBEM2019.COB2019-0809
Abstract
In the present work, continuous solutions were developed for a plane jet in laminar and turbulent regimes using the self-similarity solution technique. The results obtained through the proposed solutions differ from the results presented in the literature. Furthermore, two different models of the Unsteady Reynolds Averaged Navier-Stokes (URANS) class were implemented in an in-house code and applied in a simulation of a turbulent plane jet. Despite the small difference in the transport equations of the standard k-\epsilon model and the realizable k-\epsilon model, it is known that each model behaves differently depending on the type of problem. Therefore, the objective of the present work is to compare the results of a numerical solution of a turbulent plane jet, using the aforementioned variations of the k-\epsilon model, with the continuous solution. The normalized mean velocity profile along the jet centerline was obtained for all the three cases and compared with experimental data found in the literature. In addition to the experimental data, the numerical results, which are discrete results, were also compared with the continuous solution obtained by the authors of the present work using the similarity solution technique.
Keywords
plane jet, similarity solution, k-epsilon turbulence model, Turbulence
