Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
A STUDY OF STATIC AEROELASTIC EFFECTS ON WING CONFIGURATIONS IN TRANSONIC FLOWS
Submission Author:
J Allan Lyrio , SP
Co-Authors:
J Allan Lyrio, João Luiz F. Azevedo, Domingos Rade, Ricardo Galdino da SIlva
Presenter: J Allan Lyrio
doi://10.26678/ABCM.COBEM2019.COB2019-1123
Abstract
Transonic flows at high Reynolds numbers can lead to high dynamic pressures and, consequently, aerostructural deflections of the aircraft structures, mainly in the wings. As a consequence, Computational Fluid Dynamics (CFD) tools have been widely integrated with Computational Solid Mechanics (CSM) solvers based on finite element discretization in order to improve predictions of the aerodynamic performance and aircraft structural loads. The main objective of this paper is to describe the methodology and the numerical effort to integrate an in-house CFD code, named BRU3D, with CSM software for static aeroelastic applications in a high fidelity approach. The case used for process validation will be the static aeroelastic results from the HIRENASD project. Surface pressure distributions from BRU3D simulations are transferred to the structural model via shape functions, defined for the constant-stress triangular finite element, and deflections obtained from static structural analysis are transferred to CFD fluid mesh with the help of a Radial Basis Function (RBF) approach. Both procedures have been implemented in FORTRAN, and results demonstrating converged wing surface pressures and deflections are compared to experimental data.
Keywords
Computational Fluid Dynamics, Computational Structure Mechanics, Radial Basis Function, Static Aeroelasticity
