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Sensitivity analysis of kinematic approximations in dynamic medusan swimming models

Dabiri, John O. and Gharib, Morteza (2003) Sensitivity analysis of kinematic approximations in dynamic medusan swimming models. Journal of Experimental Biology, 206 (20). pp. 3675-3680. ISSN 0022-0949.

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Models of medusan swimming typically rely on kinematic approximations to observed animal morphology to make such investigations tractable. The effect of these simplifications on the accuracy of predicted dynamics has not been examined in detail. We conduct a case study of the scyphozoan jellyfish Chrysaora fuscescens to isolate and quantify the sensitivity of dynamic models to common kinematic approximations. It is found that dynamic models exhibit strong dependence on the nature of some approximations and the context in which they are implemented. Therefore it is incorrect and potentially misleading to assume that achieving kinematic similarity in models of measured animal locomotion will necessarily provide dynamically correct models.

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Additional Information:© The Company of Biologists Ltd 2003. Accepted 14 July 2003. First published online September 9, 2003. The authors acknowledge the helpful suggestions of B. Lin, N. Thompson, R. Morell and the reviewers of this manuscript.
Subject Keywords:jellyfish, Chrysaora fuscescens, kinematics, medusan, swimming model, animal locomotion, dynamics, morphology, jet propulsion
Record Number:CaltechAUTHORS:DABjeb03
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12894
Deposited By: Archive Administrator
Deposited On:09 Jan 2009 07:10
Last Modified:26 Dec 2012 10:41

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