... to current assumptions, the flexible forked tail of fishes is not comparably more efficient and does not perform better than flat, truncate tails at cruising swimming speeds. Fish swimming Caudal fin Efficiency Performance Cruising PIV National Science Foundation http://dx.doi.org...

... into object space coordinates in close-range photogrammetry . In Proceedings of the ASP/UI Symposium on Close-Range Photogrammetry , pp. 1 - 18 . Adhikari , D. , Webster , D. R. and Yen , J. ( 2016 ). Portable tomographic PIV measurements of swimming shelled Antarctic pteropods . Exp...

... among fins and species, and is not limited to a stabilizing role. Fig. 1. Particle image velocimetry (PIV) experimental setup used to visualize fluid dynamics in the wake of the dorsal fins . (A) Schematic diagram of the experimental setup for flow visualization around the dorsal fins of freely...

... of the cleared particles. We present pumping rates for three species of suspension feeders, the clams Mya arenaria and Mercenaria mercenaria and the tunicate Ciona intestinalis , measured using a direct method based on particle image velocimetry (PIV). Past uses of PIV in suspension-feeding studies have been...

... with wing flexing and with tail use, while tail use also increases body drag. Gliding flight Biomechanics Aerodynamics Wing morphology Particle image velocimetry PIV Wind tunnel Gliding flight in birds is a relatively inexpensive mode of flying, at least in terms of instantaneous power...

... Zebra finch Taeniopygia guttata Diamond dove Geopelia cuneata Locomotion Hindlimb Forelimb Particle image velocimetry PIV Landing allows the transition from the air to the ground or other substrate. This phase is fundamental to flight, but is often overlooked in studies compared...

... in A. Calculated values assume that non-respiratory shunting is absent at 20 ml min −1 (as confirmed by inspection of PIV images); as such, no data are shown for that flow rate. Data are shown as a box and whisker plot with one data point per individual per flow speed. Fig. 8. (A) Normalized respiratory flow...

... advice. L.M.-S. and C.T. supervised the project. COMPETING INTERESTS No competing interests declared. 15 1 2013 10 2 2013 © 2013. Published by The Company of Biologists Ltd 2013 aerodynamics leading-edge vortex LEV spiral vortex rotary seeds PIV Seed...

... under water, showing the posture of the vibrissae. Particle image velocimetry (PIV) analyzes the movements of neutrally buoyant particles that are added to the flow and filmed in selected layers ( Adrian, 1991 ). The layers can be selected by illuminating the particles only within a thin laser...

... of the paddle movement when the hydrodynamic trail was up to 35 s old. Particle Image Velocimetry (PIV) revealed that the seal might have perceived and used two different hydrodynamic parameters to determine the moving direction of the fin-like paddle. The structure and spatial arrangement of the vortices...

... discuss sensitivity and efficiency of such a robot. * Author for correspondence (e-mail: p.denissenko@gmail.com ) 3 9 2007 © The Company of Biologists Limited 2007 2007 chemical sensing crayfish PIV flow measurement biomimetics In an aquatic environment, vital...

... of airfoils in an unsteady stream. AIAA J. 32 , 797 -801. Hama, F. R. ( 1962 ). Streaklines in a perturbed shear flow. Phys. Fluids 5 , 644 -650. Hart, D. P. ( 2000 ). PIV error correction. Exp. Fluids 29 , 13 -22. Huang, M.-K. and Chow, C.-Y. ( 1982 ). Trapping of a free vortex...

...-mail: e.j.stamhuis@biol.rug.nl 5 5 1998 25 6 1998 © The Company of Biologists Limited 1998 burrow ventilation particle image velocimetry PIV tube-dwelling shrimp Callianassa subterranea metachrony ventilation energetics laminar flow non-pulsating flow Thalassinid...

...Eize J. Stamhuis; John J. Videler ABSTRACT Two alternative particle image velocimetry (PIV) methods have been developed, applying laser light sheet illumination of particle-seeded flows around marine organisms. Successive video images, recorded perpendicular to a light sheet parallel to the main...