Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
NUMERICAL STUDY OF THE FLOW AROUND A CIRCULAR BODY INSERTED IN A WIND TUNNEL FOR LOW NUMBERS OF REYNOLDS
Submission Author:
Leonardo Fonseca Lana , MG
Co-Authors:
Leonardo Fonseca Lana, Cristiana Brasil Maia
Presenter: Leonardo Fonseca Lana
doi://10.26678/ABCM.ENCIT2018.CIT18-0765
Abstract
The present paper aimed at the numerical analysis of the flow around a cylindrical body immersed in an airstream inside a wind tunnel. The simulation was performed using the commercial software Ansys - CFX ® 17.0 with the k-ω SST turbulence model. The physical parameters considered in the study were taken from the existing wind tunnel at Pontifícia Universidade Católica de Minas Gerais. The analysis was computed according to the pressure and friction coefficient, pressure and velocity fields. The separation angles, around 80°, as well as the velocity and pressure properties of the flow in the stagnation point and in the detachment around the cylinder are in accordance with the theory. While in the stagnation point the pressure was maximum and the velocity was null, after the separation the flow assumed low ranges of pressure and a great velocity. Finally, the wake presented low speeds.
Keywords
Wind Tunnel, Turbulence, Flow around a circular cylindeer, CFD
