Lagrangian analysis on routes to lift enhancement of airfoil by synthetic jet and their relationships with jet parameters

S Cao, N Dang, Z Ren, J Zhang, Y Deguchi - Aerospace Science and …, 2020 - Elsevier
Abstract Using Lagrangian Coherent Structures, the influences of synthetic jet parameters,
namely, velocity and frequency, on lift at post-stall attack angle are studied in detail, from …

Lift enhancement strategy and mechanism for a plunging airfoil based on vortex control

LH Feng, ZY Li, YL Chen - Physics of Fluids, 2020 - pubs.aip.org
ABSTRACT A new flow control strategy based on leading-edge vortex (LEV) manipulation is
proposed to improve the aerodynamic performance of a plunging airfoil. It has been found …

Lagrangian analysis of mass transport and its influence on the lift enhancement in a flow over the airfoil with a synthetic jet

S Cao, Y Li, J Zhang, Y Deguchi - Aerospace Science and Technology, 2019 - Elsevier
The mass transport and lift enhancement in flows over the NACA0015 airfoil with a synthetic
jet (SJ) are studied numerically using Lagrangian coherent structures (LCSs). Trajectories of …

Optimal waveform for fast synchronization of airfoil wakes

V Godavarthi, Y Kawamura, K Taira - Journal of Fluid Mechanics, 2023 - cambridge.org
We obtain an optimal actuation waveform for fast synchronization of periodic airfoil wakes
through the phase reduction approach. Using the phase reduction approach for periodic …

Aerodynamic performance improvement of a pitching airfoil via a synthetic jet

J Wang, J Wu - European Journal of Mechanics-B/Fluids, 2020 - Elsevier
The aim of the present work is to control the dynamic stall of a pitching NACA0012 airfoil and
improve its aerodynamic performance by using a synthetic jet in a low Reynolds number …

Enhancing tip vortices to improve the lift production through shear layers in flapping-wing flow control

BR Jin, L Wang, S Ravi, J Young, JCS Lai… - Journal of Fluid …, 2024 - cambridge.org
Flow control of a low-aspect-ratio flat-plate heaving wing at an average angle of attack of
increases from 1000 to 5000 due to its self-limiting mechanism. A mid-chord vertical blowing …

Turbulent drag reduction characteristics of bionic nonsmooth surfaces with jets

XW Song, MX Zhang - Applied Sciences, 2019 - mdpi.com
Aiming at aerodynamic drag reduction for transportation systems, a new active surface is
proposed that combines a bionic nonsmooth surface with a jet. Simulations were performed …

Effect of Synthetic Jet on NACA0012 Airfoil Vortex Structure and Aerodynamic Characteristics

J Wang, X Shi, Q Zhang, J Chang - Journal of Applied Fluid …, 2024 - jafmonline.net
In this manuscript, the vortex generated by the main frequency excitation of the shedding
vortex at various attack angles is investigated by employing the synthetic jet control …

Flow field and heat transfer of an impinging synthetic jet in the presence of cross-flow: application of SAS and DES approaches

F Bazdidi–Tehrani, A Saadniya… - Proceedings of the …, 2022 - journals.sagepub.com
Nowadays, synthetic jets have various applications such as cooling enhancement and
active flow control. In the present paper, the capability of two turbulence modelling …

Synthetic jet control on the propulsion behavior of a foil in plunge-pitch motion

Y Li, G Zhou, J Wu - Journal of Bionic Engineering, 2020 - Springer
Abstract The Synthetic Jet (SJ) control on the propulsion behavior of a foil in plunge-pitch
motion is examined in this work by numerical simulations. An elliptic foil with ratio of 8 …