Global instability of wing shock-buffet onset

S Timme - Journal of Fluid Mechanics, 2020 - cambridge.org
Shock buffet on wings encountered in edge-of-the-envelope transonic flight remains an
unresolved and disputed flow phenomenon, challenging both fundamental fluid mechanics …

Analysis of a civil aircraft wing transonic shock buffet experiment

L Masini, S Timme, AJ Peace - Journal of Fluid Mechanics, 2020 - cambridge.org
The physical mechanism governing the onset of transonic shock buffet on swept wings
remains elusive, with no unequivocal description forthcoming despite over half a century of …

Characteristic unsteady pressure field on a civil aircraft wing related to the onset of transonic buffet

Y Sugioka, K Nakakita, S Koike, T Nakajima… - Experiments in …, 2021 - Springer
Unsteady pressure fields on a civil aircraft wing near the onset of transonic buffet have been
investigated experimentally to identify flow unsteadiness that relates to the buffet onset …

Link between subsonic stall and transonic buffet on swept and unswept wings: from global stability analysis to nonlinear dynamics

F Plante, J Dandois, S Beneddine… - Journal of Fluid …, 2021 - cambridge.org
This paper examines the three-dimensional cellular patterns appearing on wings in
subsonic stall and transonic buffet conditions. Unsteady Reynolds-averaged Navier–Stokes …

Experimental investigation of transonic shock buffet on an OAT15A profile

A Accorinti, T Baur, S Scharnowski, CJ Kähler - AIAA Journal, 2022 - arc.aiaa.org
Self-sustained shock wave oscillations on airfoils, commonly defined as shock buffet, can
occur under certain combinations of transonic Mach numbers M∞ and angles of attack …

Global stability analysis of full-aircraft transonic buffet at flight Reynolds numbers

A Sansica, A Hashimoto - AIAA Journal, 2023 - arc.aiaa.org
Fully three-dimensional (3D) global stability analysis (GSA) is performed on the NASA
Common Research Model at turbulent transonic buffet conditions. The framework here …

Research initiative for numerical and experimental studies on high-speed stall of civil aircraft

T Lutz, J Kleinert, A Waldmann, L Koop, D Yorita… - Journal of Aircraft, 2023 - arc.aiaa.org
The aerodynamics of transport aircraft at the borders of the flight envelope is characterized
by complex interactions and nonlinear, unsteady flow phenomena. The underlying physical …

Physics-based data-driven buffet-onset constraint for aerodynamic shape optimization

J Li, S He, M Zhang, JRRA Martins, B Cheong Khoo - AIAA Journal, 2022 - arc.aiaa.org
Transonic buffet is undesirable because it causes vibration, and constraining buffet is crucial
in transonic wing design. However, there is still a lack of accurate and efficient buffet …

Towards extending the aircraft flight envelope by mitigating transonic airfoil buffet

E Lagemann, SL Brunton, W Schröder… - Nature …, 2024 - nature.com
In the age of globalization, commercial aviation plays a central role in maintaining our
international connectivity by providing fast air transport services for passengers and freight …

Experimental comparison of shock buffet on unswept and 10-deg swept wings

Y Sugioka, T Kouchi, S Koike - Experiments in Fluids, 2022 - Springer
Shock wave oscillations and surface flow fields on unswept-wing and 10 deg swept-wing
models were experimentally investigated in a two-dimensional transonic wind tunnel facility …