Wake topology and hydrodynamic performance of low-aspect-ratio flapping foils

By Haibo Dong, Rajat Mittal, Fady M. Najjar. Journal of Fluid Mechanics, 2006

422 citations recorded by the source corpus.

Subfields: Aerospace Engineering, Computational Mechanics, Nature and Landscape Conservation

View Paper: https://www.semanticscholar.org/paper/885e8c21f1650287c3739b196ca921604fd801c9

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In Aerospace Engineering

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In Nature and Landscape Conservation

Citations in the corpus

Hydrodynamic Performance of Aquatic Flapping: Efficiency of Underwater Flight in the Manta (2016, methodology): “The overall structure of the wake is different than the wake of a pitching-plunging plate [30] in which clear circular vortex loops were found.”
Force production and asymmetric deformation of a flexible flapping wing in forward flight (2013, positive): “The vortices are convected by the free stream and are meanwhile directed downward, which is consistent with the lift and thrust production of the present wing (Dong et al., 2006).”
Three-dimensional flows around low-aspect-ratio flat-plate wings at low Reynolds numbers (2009, background): “With the larger Reynolds number, the wake vortices are less diffused but the topology of the vortical structure are qualitatively similar, which was also noted by Dong et al. (2006) for flows around flapping foils for Re = 100–1000.”
Computational analysis of vortex dynamics and performance enhancement due to body–fin and fin–fin interactions in fish-like locomotion (2017, methodology): “…associated with the motion of the body or other ﬁns (Koochesfahani (1989); Buchholz & Smits (2006); Triantafyllou et al. (1993); Anderson et al. (1998); Dong et al. (2006)), even though it is widely thought that the interaction between the caudal ﬁn and other body parts can potentially improve…”
On the rules for aquatic locomotion (2017, result): “general peak in a range of the St number which in some studies [2–8] coincides with the narrow range of the St number observed in nature, whereas in some other studies [9,10] there is no such correspondence.”
Aerodynamics of Low Reynolds Number Flyers (2007, background): “A fixed-grid technique (Dong et al., 2006; Singh et al., 2006; Ye et al., 2001) is attractive because no regridding is needed.”
Hydrodynamics of swimming in stingrays: numerical simulations and the role of the leading-edge vortex (2016, background): “…2010; Beem et al. 2012; Pitt Ford & Babinsky 2013) or heaving and pitching 2D foils (Anderson et al. 1998; Wang 2000; Lewin & Haj-Hariri 2003; Dong et al. 2006), the LEV grows and starts shedding, but it remains stable/attached for 3D rotating blades (Ellington et al. 1996; Van Den Berg &…”
Low-dimensional models and performance scaling of a highly deformable fish pectoral fin (2009, positive): “…are as follows: at the left inflow boundary, we specify the flow velocity to be equal to (U∞, 0, 0), whereas on the right outflow boundary, we apply a convective boundary conditions that allows the vortex structures to exit the boundary without any spurious reflections (Dong et al. 2006).”
Fish locomotion: kinematics and hydrodynamics of flexible foil-like fins (2007, background): “foils by Read et al. (2003), computations of foil thrust coefficients by Dong et al. (2006) and Guglielmini and Blondeaux (2004), all show a time of net drag at stroke reversal.”