Mechanisms underlying rhythmic locomotion: body–fluid interaction in undulatory swimming
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چکیده
منابع مشابه
Mechanisms underlying rhythmic locomotion: body-fluid interaction in undulatory swimming.
Swimming of fish and other animals results from interactions of rhythmic body movements with the surrounding fluid. This paper develops a model for the body-fluid interaction in undulatory swimming of leeches, where the body is represented by a chain of rigid links and the hydrodynamic force model is based on resistive and reactive force theories. The drag and added-mass coefficients for the fl...
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We have studied the dynamical properties of tension development in leech longitudinal muscle during swimming. A new method is proposed for modeling muscle properties under functionally relevant conditions where the muscle is subjected to both periodic activation and rhythmic length changes. The 'dual-sinusoid' experiments were conducted on preparations of leech nerve cord and body wall. The lon...
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www.sciencemag.org (this information is current as of July 17, 2009 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/325/5938/314 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/325/5938/314/DC1 can be found a...
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The desert-dwelling sandfish (Scincus scincus) moves within dry sand, a material that displays solid and fluidlike behavior. High-speed x-ray imaging shows that below the surface, the lizard no longer uses limbs for propulsion but generates thrust to overcome drag by propagating an undulatory traveling wave down the body. Although viscous hydrodynamics can predict swimming speed in fluids such ...
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SYNOPSIS. We present a mathematical model and numerical method designed to study the fluid dynamics of swimming organisms. The full Navier-Stokes equations are solved in a domain of fluid within which an organism undergoing time-dependent motions is immersed. Of interest are both the dynamics of a single organism and the relationship of its morphology to its motility properties, as well as the ...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2011
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.048751