Open AccessEstimation of Wind Tunnel Corrections Using Potential Models
Author(s) -
Ionuţ Bunescu,
Sterian Dănăilă,
Mihai Victor Pricop,
Adrian Dina
Publication year - 2019
Publication title -
incas buletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.282
H-Index - 10
eISSN - 2247-4528
pISSN - 2066-8201
DOI - 10.13111/2066-8201.2019.11.1.4
Subject(s) - wind tunnel , aerodynamics , mach number , computational fluid dynamics , mechanics , flow (mathematics) , similitude , angle of attack , computer science , aerospace engineering , engineering , physics , artificial intelligence
The evaluation of the tunnel correction remains an actual problem, especially for the effect of tunnel walls. Even if the experimental campaign meets the basic similitude criteria (Mach, Reynolds etc.), the wall effect on the measured data is always present. Consequently, the flow correction due the limited by walls must be evaluated. Solid wall corrections refer to the aerodynamic interference between the experimental model and the walls of the wind tunnel. This interaction affects the measured forces and implicitly the angle of attack. Usually, these effects are introduced through semi-empirical correction factors which change the global measured forces. The present paper refers to the mathematical and numerical modeling of aerodynamic interferences between the experimental model and the solid walls based on the potential flow model. The main goal is to asses a method allowing an estimate of the corrections for each configuration with a minimum computational resource.