Propulsive efficiency and non- expert swimmers performance [PDF]
Motricidade, 2009 Propulsive efficiency is one of the most interesting issues for competitive swimming researchers, has it presents significant relationships with the swimmer’s biophysical behavior and his/her performance. Although propulsive efficiency is a variable that
Tiago Barbosa +7 more
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Development of an Adaptive Aero-Propulsive Performance Model in Cruise Flight – Application to the Cessna Citation X [PDF]
INCAS Bulletin, 2022 To accurately predict the amount of fuel needed by an aircraft for a given flight, a performance model must account for engine and airframe degradation. This paper presents a methodology to identify an aero-propulsive model to predict the fuel flow of an
Anca STEPAN +2 more
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Effect of Wing-Wing Interaction on the Propulsive Performance of Two Flapping Wings at Biplane Configuration [PDF]
Applied Bionics and Biomechanics, 2018 The biplane counter-flapping wing is a special type of wing flapping which is inspired from the fish and insect in nature. The propulsive performance is one of the most important considerations for this kind of flapping wing.
Jianyang Zhu, Bin Lei
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Secondary Analysis to Evaluate Performance Expression Stability of Alternative Complex–Contrast Training Set Strategies [PDF]
Methods and ProtocolsThis study aimed to evaluate the performance expression stability (PES) of sixteen alternative complex–contrast training (CCT) set strategies. Three separate cross-sectional studies (n = 14–17) evaluated the effects of different intra-contrast rest ...
Liam J. Houlton +3 more
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Comparing acute effects of heavy resistance, plyometric, and complex training on post-activation performance enhancement in elite swimmers: a randomized controlled trial [PDF]
Frontiers in PhysiologyBackgroundPost-activation performance enhancement (PAPE) is an emerging strategy for optimizing pre-competition warm-up in elite swimming. However, substantial heterogeneity exists across studies due to inconsistent load standardization methodologies ...
Zhili Ma +6 more
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Numerical Analysis of the Effect of the Non-Sinusoidal Trajectories on the Propulsive Performance of a Bionic Hydrofoil [PDF]
Journal of Applied Fluid Mechanics, 2022 Aquatic animals usually generate the effective propulsive force via non-sinusoidally flapping their fins. Inspired by the kinematics of fish, the propulsive characteristics of a NACA012 hydrofoil is numerically studied in this paper.
F. Li, P. Yu, N. Deng, G. Li, X. Wu
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Propulsive Performance of Morphing and Heaving Foil
Volume 5B: Ocean Engineering; Honoring Symposium for Professor Günther F. Clauss on Hydrodynamics and Ocean Engineering, 2022 Abstract Biological locomotion, observed in the flexible wings of birds and insects, bodies and fins of aquatic mammals and fishes, consists of their ability to morph the wings/fins. The morphing capability holds significance in the ability of fishes to swim upstream without spending too much energy and that of birds to glide for ...
Singh, Pragalbh Dev +3 more
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On the performance of electrohydrodynamic propulsion [PDF]
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2013 Partially ionized fluids can gain net momentum under an electric field, as charged particles undergo momentum-transfer collisions with neutral molecules in a phenomenon termed an ionic wind. Electrohydrodynamic (EHD) thrusters generate thrust by using two or more electrodes to ionize the ambient fluid and create an electric field ...
Kento Masuyama, Steven R. H. Barrett
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Propulsive performance of plunging airfoils in biplane configuration
Physics of Fluids, 2022 Biplane configuration of pure plunging airfoils is investigated in terms of vortex dynamics both experimentally and numerically by utilizing particle image velocimetry and unstructured finite volume solver of incompressible unsteady Navier–Stokes equations.
S. B. Yucel, M. Sahin, M. F. Unal
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Propulsion performance of a skeleton-strengthened fin [PDF]
Journal of Experimental Biology, 2008 SUMMARYWe examine numerically the performance of a thin foil reinforced by embedded rays resembling the caudal fins of many fishes. In our study, the supporting rays are depicted as nonlinear Euler–Bernoulli beams with three-dimensional deformability.
Qiang, Zhu, Kourosh, Shoele
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