[HTML][HTML] Flapping wing micro-aerial-vehicle: Kinematics, membranes, and flapping mechanisms of ornithopter and insect flight

MFB Abas, ASBM Rafie, HB Yusoff… - Chinese Journal of …, 2016 - Elsevier
The application of biomimetics in the development of unmanned-aerial-vehicles (UAV) has
advanced to an exceptionally small scale of nano-aerial-vehicles (NAV), which has …

A review of membrane-wing aeroelasticity

S Tiomkin, DE Raveh - Progress in Aerospace Sciences, 2021 - Elsevier
Recent developments in micro-technology have been the driving force behind the scientific
interest in micro air vehicles (MAVs), as these became feasible in the recent two decades …

Identification of flow phenomena over NACA 4412 wind turbine airfoil at low Reynolds numbers and role of laminar separation bubble on flow evolution

K Koca, MS Genç, HH Açıkel, M Çağdaş, TM Bodur - Energy, 2018 - Elsevier
Objective of this study is to elucidate relationship with aerodynamic properties and vortex
shedding from suction surface and wake of wind turbine blade at low Reynolds numbers …

Investigation of pre-stall flow control on wind turbine blade airfoil using roughness element

MS Genc, K Kemal, HH Acikel - Energy, 2019 - Elsevier
In the current study, the aerodynamic performance of NACA 4412 airfoil with sandpaper
which was used as an alternative control device instead of vortex generators was …

On the formation of three-dimensional separated flows over wings under tip effects

K Zhang, S Hayostek, M Amitay, W He… - Journal of Fluid …, 2020 - cambridge.org
We perform direct numerical simulations of flows over unswept finite-aspect-ratio NACA
0015 wings at), the tip effects retard the near-tip shedding process, which desynchronizes …

Aerodynamics and fluid–structure interaction of an airfoil with actively controlled flexible leeward surface

X He, Q Guo, Y Xu, L Feng, J Wang - Journal of Fluid Mechanics, 2023 - cambridge.org
Piezoelectric macro-fibre composite (MFC) actuators are employed onto the flexible leeward
surface of an airfoil for active control. Time-resolved aerodynamic forces, membrane …

Control of laminar separation bubble over wind turbine airfoil using partial flexibility on suction surface

HH Açıkel, MS Genc - Energy, 2018 - Elsevier
In order to suppress the laminar separation bubble and its negative effects on airfoil at low
Reynolds numbers, a partially flexible membrane was utilized on the suction surface of a …

Effect of partial flexibility over both upper and lower surfaces to flow over wind turbine airfoil

MS Genç, HH Açıkel, K Koca - Energy conversion and management, 2020 - Elsevier
Fluid-structure interaction phenomena on NACA 4412 airfoil having membrane material
which was partially mounted on both its suction and pressure surfaces were experimentally …

Traditional and new types of passive flow control techniques to pave the way for high maneuverability and low structural weight for UAVs and MAVs

MS Genç, K Koca, H Demir, HH Açıkel - Autonomous Vehicles, 2020 - books.google.com
Prevailing utilization of airfoils in the design of micro air vehicles and wind turbines causes
to gain attention in terms of determination of flow characterization on these flight vehicles …

Control of low Reynolds number flows by means of fluid–structure interactions

I Gursul, DJ Cleaver, Z Wang - Progress in Aerospace Sciences, 2014 - Elsevier
There is great interest in small aircraft known as Micro Air Vehicles and mini Unmanned Air
Vehicles due to the wide range of possible applications. This article reviews recent work that …