Propulsion of a fin whale ( Balenoptera physalus) : why the fin whale is a fast swimmer

@article{Bose1989PropulsionOA,
  title={Propulsion of a fin whale ( Balenoptera physalus) : why the fin whale is a fast swimmer},
  author={Neil Bose and Jon Lien},
  journal={Proceedings of the Royal Society of London. B. Biological Sciences},
  year={1989},
  volume={237},
  pages={175 - 200}
}
  • N. Bose, J. Lien
  • Published 1989
  • Geology, Medicine
  • Proceedings of the Royal Society of London. B. Biological Sciences
Measurements of an immature fin whale {Balaenoptera physalus), which died as a result of entrapment in fishing gear near Frenchmans Cove, Newfoundland (47° 9' N, 55° 25' W), were made to obtain estimates of volume and surface area of the animal. Detailed measurements of the flukes, both planform and sections, were also obtained. A strip theory was developed to calculate the hydrodynamic performance of the whale’s flukes as an oscillating propeller. This method is based on linear, two… Expand
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References

SHOWING 1-10 OF 26 REFERENCES
Aquatic animal propulsion of high hydromechanical efficiency
This paper attempts to emulate the great study by Goldstein (1929) ‘On the vortex wake of a screw propeller’, by looking for a dynamical theory of how another type of propulsion system has evolvedExpand
Hydromechanics of lunate-tail swimming propulsion. Part 2
This paper investigates the propulsive performance of the lunate tails of aquatic animals achieving high propulsive efficiency (the hydromechanical efficiency being defined as the ratio of the workExpand
The Propulsive Powers of Blue and Fin Whales
1. If the flow of water over the body of a Blue or a Fin whale be free from turbulence, the horse-power required per lb. of locomotory muscle is of the order of a tenth of the value estimated by GrayExpand
Power and Speed of Swimming Dolphins
TLDR
Measured swimming speeds for dolphins of the Stenella-Delphinus morphology are analyzed and energy expenditure for swimming dolphins is entirely within expected ranges and no extraordinary mechanisms are necessary to explain observations. Expand
Energetics of leaping in dolphins and other aquatic animals
The energetics of leaping (porpoising) in aquatic animals is investigated employing two simple hydromechanical models. The first compares the energy required for swimming at different depths belowExpand
Large amplitude lunate-tail theory of fish locomotion
The two-dimensional theory of lunate-tail propulsion is extended to motions of arbitrary amplitude, regular or irregular, so that an accurate comparison may be made with the actual lunate-tailExpand
Hydromechanics of lunate-tail swimming propulsion
This paper investigates the non-uniform motion of a thin plate of finite aspect ratio, with a rounded leading edge and sharp trailing edge, executing heaving and pitching oscillations at zero meanExpand
Swimming of a waving plate
The purpose of' this paper is to study the basic principle of fish propulsion. As a simplified model, the two-dimensional potential flow over a waving plate of finite chord is treated. The solidExpand
Radio Tracking of a Fin Whale (Balaenoptera physalus)
TLDR
A tagged whale of the genus Balaenoptera was intermittently tracked by radio for 27.8 hours over a distance of about 145 kilometers, showing that during that time the whale took 58 breaths in 130 minutes and traveled 20 kilometers at more than 9 kilometers per hour. Expand
Differences between upstroke and downstroke in swimming dolphins.
TLDR
The data suggest that the drag on the body during the upstroke exceeds the drag in the course of the downstroke, and the propulsive forces of downstrokes are on average larger than the forces of the upstrokes. Expand
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3
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