Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
PREDICTION OF ENGINE INSTALLATION DRAG FOR THE DLR-F6 CONFIGURATION VIA CFD
Submission Author:
João Luiz F. Azevedo , SP , Brazil
Co-Authors:
Ricardo Galdino da SIlva
Presenter: João Luiz F. Azevedo
doi://10.26678/ABCM.ENCIT2016.CIT2016-0329
Abstract
Reynolds-averaged Navier-Stokes simulations are performed to determine engine installation drag for a wing-body-pylon-nacelle configuration. To this end, the DLR-F6 geometry, which has wind tunnel results and also numerical results available from the 2nd AIAA CFD Drag Prediction Workshop (DPW-II), is used. Moreover, these results are at hand for DLF-F6 configuration with and without pylon and nacelle. All the experimental results are acquired for a Mach number equal to 0.75 and a Reynolds number equal to 3 million. This test case is used as a part of an ongoing validation process of an in-house developed Computational Fluid Dynamics (CFD) code, denoted BRU3D, for aerospace applications. Three hybrid meshes with different refinement levels are generated in order to measure the mesh refinement effect on engine installation drag. In addition, at least three hexahedral (multiblock) meshes with different levels of refinement are also used to determine engine installation drag. These meshes are obtained from the DPW-II website. All the simulations are performed with the Spalart-Allmaras (SA) turbulence model. The final paper will present comparisons of drag polar with and without engines obtained from our numerical results, experimental results and also other numerical results obtained by participants of DPW-II.
Keywords
Drag prediction, CFD, Engine installation drag, turbulence modeling, Drag prediction, CFD, Engine installation drag, turbulence modeling, Drag prediction, CFD, Engine installation drag, turbulence modeling, Drag prediction, CFD, Engine installation drag, turbulence modeling
