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Recent development of a CFD-wind tunnel correlation study based on CAE-AVM investigation

Chinese Journal of Aeronautics 2018年第3期31卷 419-428页

作者： Jun HUA Sui ZHENG Min ZHONG Ganglin WANG Georg EITELBERG Sinus HEGEN Roy GEBBINK Chinese Aeronautical Establishment Beijing 100012 China German-Dutch Wind Tunnels Marknesse 8316 PR The Netherlands

This paper starts with brief introduction to the open topic of the CFD and wing tunnel correlation study, followed by a description of the Chinese Aeronautical Establishment（CAE） –Aerodynamic Validation model（AVM） and its wind tunnel test in the German-Dutch Wind tunnels（DNW）. The features of the aerodynamic design, the CFD approach, the wind tunnel model fabrication and the experimental techniques are discussed along with the motivation of the CAEDNW workshop on CFD-wind tunnel correlation study. The workshop objective is focused on the interference from the aero-elastic deformation of the wind tunnel model and the model support system to the aerodynamic performance and CFD validations. The four study cases, geometry and mesh preparation of the workshop are introduced. A comprehensive summary of the CFD results from the organizer and the participants is provided. Major observations, both CFD to CFD and CFD to wind tunnel, are identified and summarized. The CFD results of the participants are in good agreement with each other, and with the wind tunnel test data when the wing deformation and a Z-sting system are included in the CFD, indicating the importance of considering such interference at high subsonic Mach number of 0.85.

关键词： Aerodynamic design CFD validation CFD-wind tunnel correlation model deformation model support interference

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High-speed wind tunnel test of the CAE aerodynamic validation model

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Chinese Journal of Aeronautics 2018年第3期31卷 439-447页

作者： Roy GEBBINK Ganglin WANG Min ZHONG German-Dutch Wind Tunnels Marknesse 8316 PR The Netherlands Chinese Aeronautical Establishment Beijing 100012 China

For the purpose of establishing and validating aerodynamic performance predictions at transonic Mach numbers, a wind tunnel test was conducted in the High-Speed Tunnel（HST） of the German-Dutch Wind Tunnels. The test article is the aerodynamic validation model from the Chinese Aeronautical Establishment, which is a full-span scale model representation of a business jet aircraft. The wind tunnel test comprised of parallel deployments of balance, pressures, infrared thermography, and model marker measurement techniques. Dedicated investigations with a dummy support were conducted as well, in order to derive and correct for the interference that the support system imposed on the overall model loads. This enabled the establishment of a comprehensive dataset in which the steady overall model loads, the wing load distribution, the state of the wing boundary layer, and the aeroelastic wing shape were quantified for conditions up to and beyond the cruise Mach number of 0.85.

关键词： Wind tunnel test Aerodynamic validation model model deformation Support interference

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