Effects of Leading-Edge Protuberances on Airfoil Performance

By H. Johari, C. Henoch, D. Custodio, A. Levshin. 2006

552 citations recorded by the source corpus.

Subfields: Aerospace Engineering, Computational Mechanics

View Paper: https://www.semanticscholar.org/paper/8c63b1b8b32dd76dfc90c549aaedd9a6042c9060

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In Aerospace Engineering

In Computational Mechanics

Citations in the corpus

Performance Variations of Leading-Edge Tubercles for Distinct Airfoil Profiles (2011, methodology): “It is unclear as to whether these vortices induce a type of vortex lift as suggested in the literature [8,17,18] or if they behave like vortex generators, increasing the extent of flow attachment through an augmented rate of momentum exchange within the boundary layer.”
Flow over a Wing with Leading-Edge Undulations (2015, background): “[3] performed an experimental study on infinite or quasitwo-dimensional wings (i.”
Evolution of the streamwise vortices generated between leading edge tubercles (2016, methodology): “Behind the tubercle trough, separation occurs much earlier than behind the peak, which is consistent with previous results (Johari et al. 2007; van Nierop et al. 2008).”
On the reduction of aerofoil–turbulence interaction noise associated with wavy leading edges (2016, background): “…in recent years with regard to their benefits in terms of improved aerodynamic/hydrodynamic performance, particularly at high angles of attack close to the stall (Johari et al. 2007; Hansen, Kelso & Dally 2011; Yoon et al. 2011; Guerreiro & Sousa 2012; Zhang, Wang & Xu 2013; Skillen et al. 2014).”
The effect of wavy leading edges on aerofoil-gust interaction noise (2013, background): “Several studies showed that leading-edge tubercles may lead to a more gradual stall and better post-stall performance than straight leading edges at the expense of marginal reduction in pre-stall performance [17–25].”
Performance and mechanism of sinusoidal leading edge serrations for the reduction of turbulence–aerofoil interaction noise (2017, background): “This is consistent with the reported decrease in lift observed by Hansen et al. (2011), Johari et al. (2007) and lift measurements presented in figure 14.”
Hydrodynamic effects of leading-edge tubercles on control surfaces and in flapping foil propulsion (2008, background): “[12] investigated the effect of tubercle frequency and amplitude on a two-dimensional rectangular foil at Re = 1.”