Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Numerical simulation of an Aero Design aircraft aerodynamic characteristics
Submission Author:
Caio Vinícius Schurgelies de Sá , DF
Co-Authors:
Caio Vinícius Schurgelies de Sá, Braulio Pimenta
Presenter: Caio Vinícius Schurgelies de Sá
doi://10.26678/ABCM.COBEM2021.COB2021-1666
Abstract
We present a complete workflow to obtain the aerodynamic characteristics of a SAE Brasil Aero Design Competition aircraft via computational fluid dynamics (CFD). A brief discussion about the computational and numerical resources used is given. The model aircraft is a radio-controlled flying wing, where its basic geometry is introduced for a flow regime with a typical Reynolds number in the range of 4.5*10^5 to 8.5*10^5. We use the ICEM CFD software for pre-processing, the SU2 open-source simulation code for simulation and the Paraview visulization software for post-processing. A mesh convergence study and a validation of the Spalart-Allmaras (SA) and the Shear Stress Menter (SST) turbulence models to our application are presented. We use the Vortex Lattice Method (VLM) and the three-dimensional Panel Method available in XFLR5 software and experimental data available from literature to decide about the cost-benefit and to assess the level of fidelity of each method. After that, simulations results of longitudinal coefficients, sideslip angle, aileron deflection and ground effect are presented. We conclude that the presented CFD-based workflow is consistent and has good cost-benefit in the context of the detailed project for the SAE Brasil Aero Design Competition, and that it can be also used for similar Unmanned Aerial Vehicle (UAV).
Keywords
Computational fluid dynamics (CFD), RANS Simulation, SU2, UAV
