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 analysis of transonic buffet conditions on a two-dimensional supercritical airfoil

CJ Schauerte, AM Schreyer - AIAA Journal, 2023 - arc.aiaa.org
The present experimental investigation characterizes the development and decay of
transonic buffet on the supercritical airfoil OAT15A, as well as the flow field and shock …

Effect of Mach number and pitching eigenfrequency on transonic buffet onset

T Korthäuer, A Accorinti, S Scharnowski, CJ Kähler - AIAA Journal, 2023 - arc.aiaa.org
The transonic flow around an elastically suspended supercritical airfoil was experimentally
investigated in order to enhance knowledge of buffet boundary dependencies and the …

Effect of transition on self-sustained shock oscillations in highly loaded transonic rotors

PL Nel, C Janke, I Vasilopoulos, M Swoboda… - AIAA Journal, 2024 - arc.aiaa.org
Recent trends in numerical studies suggest the possible need for scale-resolving
simulations for resolving shock oscillations on transonic compressors, the sources of which …

[HTML][HTML] Experimental investigation of transonic buffeting, frequency lock-in and their dependence on structural characteristics

T Korthäuer, A Accorinti, S Scharnowski… - Journal of Fluids and …, 2023 - Elsevier
Transonic buffet is a phenomenon that appears in compressible flow around an airfoil and
plays a substantial role in the limitation of the flight envelope of commercial aircraft. If the …

Characterization of transonic shock oscillations over the span of an OAT15A profile

A Accorinti, T Korthäuer, S Scharnowski, CJ Kähler - Experiments in Fluids, 2023 - Springer
The flow over a wing model with aspect ratio 2 and based on the supercritical airfoil
(OAT15A) was experimentally investigated for a fixed Reynolds number (R ec) of 3× 10 6 …

Koopman neural operator approach to fast flow prediction of airfoil transonic buffet

D Meng, Y Zhu, J Wang, Y Shi - Physics of Fluids, 2024 - pubs.aip.org
Transonic buffet on airfoil is of great importance in the aerodynamic characteristics of
aircraft. In the present work, a modified Koopman neural operator (KNO) is applied to predict …

Extending the aircraft flight envelope by mitigating transonic airfoil buffet

E Lagemann, SL Brunton, W Schröder… - arxiv preprint arxiv …, 2024 - arxiv.org
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 …

Investigating the flow field dynamics of transonic shock buffet using particle image velocimetry

K Kokmanian, S Scharnowski, C Schäfer… - Experiments in …, 2022 - Springer
An experimental investigation was performed in order to better understand the transonic
shock buffet phenomenon and determine the dominant flow interactions at specific flow …

Comparison of shock-buffet dynamics on a supercritical airfoil with and without a pitching degree of freedom

S Scharnowski, A Accorinti, T Korthäuer… - CEAS Aeronautical …, 2024 - Springer
With the goal of understanding the dynamics of the transonic flow around an OAT15A airfoil
model, velocity field measurements were performed by means of high repetition rate particle …