Evaluation and Validation of Aeroelastic Analysis Program for the “AeroStruct” Wing Optimization Platform

Wing aero/structural optimization driven by higher-fidelity simulations plays an important role in the design of high-aspect-ratio transonic wings. Surrogate-based optimization (SBO) is one of the most popular optimization techniques, due to its capability of global search and high efficiency. Based on the framework of SBO, we are developing a wing aero/structural optimization platform, which is named as AeroStruct. Here we are focusing on validation and evaluation the aeroelastic analysis module of the AeroStruct. Navier-Stokes equation, Euler equation and full potential equation are optional for aerodynamic analysis, while ANSYS and NASTRAN are available for structural analysis. A radial basis function interpolation is used for data coupling between different meshes of aerodynamic and structural analysis. The benchmark wing models for aeroelastic analysis, CRM and HIRENASD, are used for validation and evaluation of the codes. It is shown that the computational results are in good agreement with the experimental data or other researchers' results. The developed codes are applied to the aeroelastic analysis of the uCRM-9 model that is the jig shape of CRM, which shows that the codes are efficient and robust.