Numerical Prediction and Post-Test Numerical Analysis of the ASDMAD Wind Tunnel Tests in ETW

TL;DR

This study compares numerical simulations with experimental data for wind tunnel tests of an aircraft model, using advanced solvers to analyze static and dynamic aeroelastic behavior.

Contribution

It introduces a combined numerical approach using multiple solvers to accurately predict aeroelastic responses in wind tunnel tests.

Findings

Good agreement between simulations and experimental pressure distributions.

Successful prediction of lift coefficients across various conditions.

Initial dynamic vibration analysis results show promising correlation.

Abstract

This paper presents numerical results in comparison with experimental data of nominally static aeroelastic polars of the second ASDMAD (Aero-Structural Dynamics Methods for Airplane Design) campaign conducted in the European Transonic Windtunnel. For the simulation the modular solver package SOFIA combined with the DLR solver TAU on the fluid side and the in-house solver FEAFA on the structural side is applied. First the experimental setup and the aeroelastic solver are introduced, followed by a detailed analysis of the results. Comparisons of pressure distributions and the global lift coefficients are presented for variations of angle of attack, Mach number and aerodynamic loading factor. Additionally, the paper contains preliminary investigations of dynamic results for excited vibration applying periodical inner force couples in the wing root area.