STUDY OF THE EFFECTS OF NUMERICAL MODEL ENHANCEMENTS FOR AEROSTRUCTURAL ANALYSIS IN TRANSONIC FLOWS

Abstract

© (2022) by International Council of Aeronautical Sciences (ICAS) All rights reserved.The objective of the present work is to discuss the effects of model enhancements on the capability of performing static aeroelastic analyses of aeronautical configurations. The model improvements addressed in this effort concern the use of finer aerodynamic grids, different turbulence models and the size of the modal base for the representation of the structural deflection solution. The study considers the NASA Common Research Model (CRM), from the 6th AIAA CFD Drag Prediction Workshop, and the High Reynolds Number Aerostructural Dynamics (HIRENASD) configuration, from the 1st AIAA Aeroelastic Prediction Workshop. A clear improvement in the aerodynamic prediction of drag, pitching moment and pressure coefficient distributions is observed for the NASA CRM case. For the HIRENASD test case, aerodynamic grid refinement has yielded results that demonstrate the robustness of the developed fluid-structure interaction process.

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