Resolvent analysis of an airfoil laminar separation bubble at

CA Yeh, SI Benton, K Taira, DJ Garmann - Physical Review Fluids, 2020 - APS
We perform a resolvent analysis to examine the perturbation dynamics over the laminar
separation bubble (LSB) that forms near the leading edge of a NACA 0012 airfoil at a chord …

Wall-resolved large eddy simulations of a pitching NACA0012 incurring in deep dynamic stall

G Baldan, A Guardone - arXiv preprint arXiv:2405.12036, 2024 - arxiv.org
This study investigates the flow evolution past a pitching NACA0012 airfoil undergoing deep
dynamic stall using a wall-resolved large eddy simulation approach. Numerical results are …

Flow instability and momentum exchange in separation control by a synthetic jet

Y Abe, T Nonomura, K Fujii - Physics of Fluids, 2023 - pubs.aip.org
This study investigates a mechanism for controlling separated flows around an airfoil using a
synthetic jet (SJ). A large-eddy simulation (LES) was performed for a leading-edge …

Effects of compressibility on dynamic-stall onset using large-eddy simulation

SI Benton, MR Visbal - AIAA Journal, 2020 - arc.aiaa.org
Large-eddy simulations of the onset of dynamic stall for a NACA 0012 airfoil, pitching at a
constant rate, are performed for a chord Reynolds number of 1.0× 1 0 6. Using four …

Comparison of Separation Control Mechanisms for Synthetic Jet and Plasma Actuators

Y Abe, T Nonomura, M Sato, H Aono, K Fujii - Actuators, 2023 - mdpi.com
This study numerically investigated the mechanisms of separation control using a synthetic
jet (SJ) and plasma actuator (PA) around an NACA0015 airfoil at the chord Reynolds …

Pitch–Plunge Equivalence in Dynamic Stall of Ramp Motion Airfoils

R Miotto, W Wolf, D Gaitonde, M Visbal - AIAA Journal, 2023 - arc.aiaa.org
Large-eddy simulations (LES) are employed to investigate the pitch–plunge equivalence of
an SD7003 airfoil undergoing constant ramp motions at Reynolds number R e= 6× 10 4. The …

Pitch/Plunge Equivalence for Dynamic Stall of Unswept Finite Wings

MR Visbal, DJ Garmann - AIAA Journal, 2022 - arc.aiaa.org
Pitch/plunge equivalence for deep dynamic stall of a straight finite wing is considered by
employing large-eddy simulations. The flowfields are computed with a well-established time …

Numerical analysis of Reynolds and Mach number effect on dynamic stall onset

S Lee, B Chanez, A Gross - Physics of Fluids, 2024 - pubs.aip.org
The onset of dynamic stall limits the maximum airspeed of helicopters. For Reynolds
numbers where laminar separation precedes transition, the bursting of a leading edge …

Large-eddy simulations of dynamic stall for a NACA0012 wing section

S Lee, A Gross - AIAA SCITECH 2024 Forum, 2024 - arc.aiaa.org
Large-eddy simulations of dynamic stall for a wing section with NACA0012 airfoil were
performed for three cases from the literature: A case modeled after Gupta and Ansell [AIAA …

Pitch/Plunge Equivalence for Dynamic Stall of Swept Finite Wings

DJ Garmann, MR Visbal - AIAA Journal, 2022 - arc.aiaa.org
A high-fidelity numerical study is undertaken to expand the notion of pitch/plunge
equivalence to finite, swept wings undergoing deep-dynamic stall and builds upon the …