@inproceedings{dcf76622a6504458822c711f89986d2c,
title = "Independent effects of reynolds and mach numbers on the aerodynamics of an iced swept wing",
abstract = "Aerodynamic assessment of icing effects on swept wings is an important component of a larger effort to improve three-dimensional icing simulation capabilities. An understanding of ice-shape geometric fidelity and Reynolds and Mach number effects on the iced-wing aerodynamics is needed to guide the development and validation of ice-accretion simulation tools. To this end, wind-tunnel testing was carried out for a 13.3%-scale semispan wing based upon the Common Research Model airplane configuration. The wind-tunnel testing was conducted at the ONERA F1 pressurized wind tunnel with Reynolds numbers of 1.6×106 to 11.9×106 and Mach numbers of 0.09 to 0.34. Five different configurations were investigated using fully 3D, high-fidelity artificial ice shapes that maintain nearly all of the 3D ice accretion features documented in prior icing-wind tunnel tests. These large, leading-edge ice shapes were nominally based upon airplane holding in icing conditions scenarios. For three of these configurations, lower-fidelity simulations were also built and tested. The results presented in this paper show that while Reynolds and Mach number effects are important for quantifying the clean-wing performance, there is very little to no effect for an iced-wing with 3D, high-fidelity artificial ice shapes or 3D smooth ice shapes with grit roughness. These conclusions are consistent with the large volume of past research on iced-airfoils. However, some differences were also noted for the associated stalling angle of the iced swept wing and for various lower-fidelity versions of the leading-edge ice accretion. More research is planned to further investigate the key features of ice accretion geometry that must be simulated in lower-fidelity versions in order to capture the essential aerodynamics.",
author = "Broeren, {Andy P.} and Sam Lee and Woodard, {Brian S.} and Lum, {Christopher W.} and Smith, {Timothy G.}",
note = "Publisher Copyright: {\textcopyright} 2018, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.; 10th AIAA Atmospheric and Space Environments Conference, 2018 ; Conference date: 25-06-2018 Through 29-06-2018",
year = "2018",
doi = "10.2514/6.2018-3492",
language = "English (US)",
isbn = "9781624105586",
series = "2018 Atmospheric and Space Environments Conference",
publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",
booktitle = "2018 Atmospheric and Space Environments Conference",
}