A review: Approaches for aerodynamic performance improvement of lift-type vertical axis wind turbine

Z Zhao, D Wang, T Wang, W Shen, H Liu… - … energy technologies and …, 2022 - Elsevier
Floating vertical-axis wind turbines (VAWTs) display considerable advantages over
horizontal-axis wind turbines (HAWTs) due to their Omni directionality, better structural …

[HTML][HTML] Recent advances in understanding the flow over bluff bodies with different geometries at moderate Reynolds numbers

MR Lekkala, M Latheef, JH Jung, A Coraddu, H Zhu… - Ocean …, 2022 - Elsevier
The application of unsteady incompressible flow phenomenon over the bluff bodies has
received the attention of many researchers due to the rich and complex physics …

[HTML][HTML] Leading-edge serrations for performance improvement on a vertical-axis wind turbine at low tip-speed-ratios

Z Wang, M Zhuang - Applied Energy, 2017 - Elsevier
The performance of vertical-axis wind turbines (VAWTs) are substantially affected by the
phenomenon of dynamic stall which is induced by the variations of angle of attack of rotating …

Improvement of the aerodynamic performance of vertical axis wind turbines with leading-edge serrations and helical blades using CFD and Taguchi method

Z Wang, Y Wang, M Zhuang - Energy conversion and management, 2018 - Elsevier
The flow performance of vertical-axis wind turbines (VAWTs) is significantly deteriorated by
dynamic stall at low tip-speed-ratios (TSR). Dynamic stall occurs periodically during the …

The tubercles on humpback whales' flippers: application of bio-inspired technology

FE Fish, PW Weber, MM Murray, LE Howle - 2011 - academic.oup.com
The humpback whale (Megaptera novaeangliae) is exceptional among the large baleen
whales in its ability to undertake aquabatic maneuvers to catch prey. Humpback whales …

On the reduction of aerofoil–turbulence interaction noise associated with wavy leading edges

JW Kim, S Haeri, PF Joseph - Journal of Fluid Mechanics, 2016 - cambridge.org
An aerofoil leading-edge profile based on wavy (sinusoidal) protuberances/tubercles is
investigated to understand the mechanisms by which they are able to reduce the noise …

Performance and mechanism of sinusoidal leading edge serrations for the reduction of turbulence–aerofoil interaction noise

P Chaitanya, P Joseph, S Narayanan… - Journal of Fluid …, 2017 - cambridge.org
This paper presents the results of a detailed experimental investigation into the effectiveness
of sinusoidal leading edge serrations on aerofoils for the reduction of the noise generated by …

LES study of unsteady cavitation characteristics of a 3-D hydrofoil with wavy leading edge

MR Pendar, E Esmaeilifar, E Roohi - International Journal of Multiphase …, 2020 - Elsevier
The present study seeks to conduct numerical investigations of the cavitating flow
characteristics around a sinusoidal wavy leading edge (WLE) 3-D hydrofoil underlying a …

Flow over a wing with leading-edge undulations

A Skillen, A Revell, A Pinelli, U Piomelli, J Favier - Aiaa Journal, 2015 - arc.aiaa.org
The stall-delaying properties of the humpback whale flipper have been observed and
quantified in recent years, through both experimental and numerical studies. In the present …

An experimental study on flow separation control of hydrofoils with leading-edge tubercles at low Reynolds number

Z Wei, TH New, YD Cui - Ocean Engineering, 2015 - Elsevier
Hydrodynamic characteristics of hydrofoils with leading-edge tubercles were experimentally
investigated in a water tunnel at a Reynolds number of Re= 1.4× 10 4. Particle image …