On the co-existence of transonic buffet and separation-bubble modes for the OALT25 laminar-flow wing section
Transonic buffet is an unsteady flow phenomenon that limits the safe flight envelope of
modern aircraft. Scale-resolving simulations with span-periodic boundary conditions are …
modern aircraft. Scale-resolving simulations with span-periodic boundary conditions are …
Dynamic characteristic of transonic aeroelasticity affected by fluid mode in pre-buffet flow
Transonic aeroelasticity remains a significant challenge in aerospace. The coupling
mechanism of aeroelastic problems involving the coexistence of fluid modes and multiple …
mechanism of aeroelastic problems involving the coexistence of fluid modes and multiple …
A hybrid approach for reconstruction of transonic buffet aerodynamic noise: Integrating random forest and compressive sensing algorithm
Q Zhang, W Zhang - Aerospace Science and Technology, 2024 - Elsevier
Experimental measurements and numerical simulation methods for obtaining aerodynamic
noise face issues such as high costs and long periods. A single machine learning method …
noise face issues such as high costs and long periods. A single machine learning method …
Mechanism of periodic oscillation in low-Reynolds-number buffet around an airfoil at angle of attack 0
K Fujino, K Suzuki - Physics of Fluids, 2024 - pubs.aip.org
In this study, the low-frequency oscillations found in the compressible low-Reynolds-number
regime, defined as low-Reynolds-number buffet, were investigated by numerical …
regime, defined as low-Reynolds-number buffet, were investigated by numerical …
Data assimilation and linear analysis with turbulence modelling: application to airfoil stall flows with PIV measurements
A combined data-assimilation and linear mean-flow analysis approach is developed to
estimate coherent flow fluctuations from limited mean-flow measurements. It also involves …
estimate coherent flow fluctuations from limited mean-flow measurements. It also involves …
Large-Eddy Simulation of Low-Frequency Flow Oscillations for NACA0012 and Dynarig Sail at Large Attack Angles
Q Zeng, W Cai, J Xu - Journal of Marine Science and Engineering, 2024 - mdpi.com
Unmanned sailboats, harnessing wind for propulsion, offer great potential for extended
marine research due to their virtually unlimited endurance. The sails typically operate at high …
marine research due to their virtually unlimited endurance. The sails typically operate at high …
Linear Response of Transonic Laminar Shock Buffet on the OALT25 Airfoil
A numerical study of a transonic flow over the OALT25 supercritical airfoil is conducted. The
freestream Mach number is 0.735, the angle of attack is 4 deg, and the chord-length-based …
freestream Mach number is 0.735, the angle of attack is 4 deg, and the chord-length-based …
Open-Source Parametric Airfoils to Study Geometric Effects on Buffet
Recent research into buffet in the transonic flow regime has been focused on a limited
number of proprietary airfoil geometries and has mainly considered parametric variations in …
number of proprietary airfoil geometries and has mainly considered parametric variations in …
Three-Dimensional Simulations of Low-Reynolds-Number Buffet Around an Unswept High-Subsonic and Transonic Wing
K Fujino, K Suzuki - AIAA AVIATION FORUM AND ASCEND 2024, 2024 - arc.aiaa.org
In this study, three-dimensional simulation of low-Reynolds-number buffet was conducted
where low-frequency oscillations, similar to transonic buffet of high-Reynolds-number …
where low-frequency oscillations, similar to transonic buffet of high-Reynolds-number …