Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Numerical Study of the JSM High-Lift Configuration Using a RANS Approach
Submission Author:
João Luiz F. Azevedo , SP , Brazil
Co-Authors:
Ricardo Galdino da SIlva, Leonardo Motta Maia de Oliveira Carvalho, João Luiz F. Azevedo, Edson Basso
Presenter: João Luiz F. Azevedo
doi://10.26678/ABCM.COBEM2017.COB17-1607
Abstract
The goal of present effort is to compare our in-house numerical code results with the ones available for complex high-lift configurations (Wing and Body - WB and Wing, Body, Pylon, and Nacelle - WBPN) developed by JAXA. Due to the high complexity of high-lift configurations, this comparison will be very useful since our in-house CFD code is, right now, passing through the process of verification numerical methodology and enhancement of the turbulence models available. Our code, called BRU3D by our research group, solves Reynolds-averaged Navier-Stokes equations using the finite-volume method on unstructured grids. The aerodynamics coefficients obtained for results of WB configuration is in good agreement with experimental results for most angles of attacks. The stall for this configuration occurs earlier than shown by experimental results, in addition, the shear-stress lines pattern reveals a different stall trigger, when it is compared with the oil flow pattern. The results obtained for WBPN configuration present not only a good agreement with experimental for aerodynamics coefficients but, also, for shear-stress lines patterns. The stall characteristics are correctly predicted for this configuration.
Keywords
RANS, high-lift devices, CFD, Unstructured, Complex Geometries
