Results 271 to 280 of about 358,967 (299)

Hybrid animation production and the dream of flight

SIGGRAPH ASIA Art Gallery/Art Papers, 2019
Through a detailed account of a recent practice-based research project - a short animation project called Jasper, this paper explores how a hybrid analogue/digital production approach can generate a unique and engaging visual style - one that sits between the tangible, handcrafted feel of miniatures and the cleanness, fluidity and flexibility of ...
Simon Rippingale, Andrew Johnston, Andrew Bluff   +2 more
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Biological and Aerodynamical Problems of Animal Flight

The Journal of the Royal Aeronautical Society, 1942
The recurring discussions regarding human flapping flight (if possible, by muscle-power!) have done more harm than good, because they distract attention from other more important subjects.For example, the heed for the faster and larger flying creatures (such as large birds) and for high-speed aeroplanes to reduce speed when necessary, without ...
Erich Von Holst, Dietrich Kuchemann
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PIV-based investigations of animal flight

Experiments in Fluids, 2008
An overview is presented of the principles of estimation of fluid forces exerted upon solid bodies, based upon whole-field velocity measurements such as provided by PIV. The focus will be on the range of length and velocity scales characterised by the flight of large insects, birds, bats and small unmanned air vehicles, so that while viscous terms in ...
Geoffrey R. Spedding, Anders Hedenström
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Aerodynamic Aspects of Animal Flight

1975
A lecture or a course of lectures on ‘Aircraft’ would put approximately equal emphasis on aerodynamic, structural and power-plant aspects; whereas lectures on ‘Aerodynamics of Aircraft’ would concentrate principally on aerodynamic matters while referring to just the basic elements of what limitations are imposed by structural and power-plant ...
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Animal Flight Mechanics in Physically Variable Gas Mixtures

Journal of Experimental Biology, 1996
ABSTRACT Empirical studies of animal flight performance have generally been implemented within the contemporary atmosphere. Experimental alteration of the physical composition of gas mixtures, however, permits construction of novel flight media and the non-invasive manipulation of flight biomechanics.
, Dudley, , Chai
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Introduction: Animal flight

Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 1982
E. Frey, J. Riess
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A New Approach to Animal Flight Mechanics

Journal of Experimental Biology, 1979
ABSTRACT The mechanics of lift and thrust generation by flying animals are studied by considering the distribution of vorticity in the wake. As wake generation is not continuous, the momentum jet theory, which has previously been used, is not satisfactory, and the vortex theory is a more realistic model. The vorticity shed
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A vortex theory of animal flight. Part 2. The forward flight of birds

Journal of Fluid Mechanics, 1979
The vortex wake of a bird in steady forward flight is modelled by a chain of elliptical vortex rings, each generated by a single downstroke. The shape and inclination of each ring are determined by the downstroke geometry, and the size of each ring by the wing circulation; the momentum of the ring must overcome parasitic and profile drags and the bird ...
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The Imitation of nature? Flapping flight and animal forms as models for human flight

History and Technology, 1995
Human flight has a dual historiography. Earlier accounts often derived from writers who had been professionally engaged in aeronautics and who also had a historical bent More recently aviation has become a subject of interest for academically‐based historians.
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Animating bird flight using aerodynamics

The Visual Computer, 1999
Balajee Ramakrishnananda, Kok Cheong Wong   +1 more
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