Results 11 to 20 of about 32,761 (288)
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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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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Comparative jet wake structure and swimming performance of salps [PDF]
, 2010 Salps are barrel-shaped marine invertebrates that swim by jet propulsion. Morphological variations among species and life-cycle stages are accompanied by differences in swimming mode.
Madin, Laurence P., Sutherland, Kelly R.
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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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Swimming mechanics and propulsive efficiency in the chambered nautilus [PDF]
Royal Society Open Science, 2018 The chambered nautilus (Nautilus pompilius) encounters severe environmental hypoxia during diurnal vertical movements in the ocean. The metabolic cost of locomotion (Cmet) and swimming performance depend on how efficiently momentum is imparted to the ...
Thomas R. Neil, Graham N. Askew
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Propulsion system performance resulting from an Integrated Flight/Propulsion Control design [PDF]
Astrodynamics Conference, 1992 Propulsion-system-specific results are presented from the application of the integrated methodology for propulsion and airframe control (IMPAC) design approach to integrated flight/propulsion control design for a 'short takeoff and vertical landing' (STOVL) aircraft in transition flight.
DUANE MATTERN, SANJAY GARG
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Installed performance assessment of a boundary layer ingesting distributed propulsion system at design point [PDF]
, 2016 Boundary layer ingesting systems have been proposed as a concept with great potential for reducing the fuel consumption of conventional propulsion systems and the overall drag of an aircraft.
Goldberg, Chana +3 more
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Effects of Regular Waves on Propulsion Performance of Flexible Flapping Foil
Applied Sciences, 2018 The objective of the present study is to analyze the effects of waves on the propulsive performance and flow field evolution of flexible flapping foil, and then offer a way to take advantage of wave energy.
Peng Liu +4 more
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Numerical Investigation of the Semi-Active Flapping Foil of the Wave Glider
Journal of Marine Science and Engineering, 2019 A numerical investigation is conducted to study the propulsive performance of the semi-active flapping foil of the wave glider, where the heaving smotion is fully prescribed, and the pitching motion is determined by the hydrodynamic force and torsion ...
Zhanfeng Qi +6 more
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More push from your push-off: Joint-level modifications to modulate propulsive forces in old age. [PDF]
PLoS ONE, 2018 INTRODUCTION:Compared to young adults, older adults walk with smaller propulsive forces and a redistribution to more proximal leg muscles for power generation during push-off.
Michael G Browne, Jason R Franz
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