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A minimal model of self propelled locomotion
Journal of Fluids and Structures ( IF 3.6 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.jfluidstructs.2020.103071
Jesús Sánchez-Rodríguez , Christophe Raufaste , Médéric Argentina

Abstract Fish locomotion is a complicated problem in the context of fluid–structure interaction and it is still not understood what is linked to biology and what is linked to mechanics. Measurements performed on natural fish and artificial systems reveal that swimming at high Reynolds number is found in a narrow range of Strouhal numbers - a dimensionless combination of the swimming velocity, tail beat amplitude and frequency. With a minimal model of aquatic locomotion, we investigate how this number depends on the numerous parameters at play. We show a strong correlation with the drag coefficient, while the effect of the other parameters can be neglected at the first-order approximation.

中文翻译:

自走运动的最小模型

摘要 在流固耦合的背景下,鱼类运动是一个复杂的问题,目前尚不清楚什么与生物学有关,什么与力学有关。对天然鱼和人工系统进行的测量表明,在斯特劳哈尔数的狭窄范围内发现以高雷诺数游泳 - 游泳速度、尾拍幅度和频率的无量纲组合。使用最小的水上运动模型,我们研究了这个数字如何取决于众多参数。我们显示出与阻力系数的强相关性,而其他参数的影响在一阶近似时可以忽略不计。
更新日期:2020-08-01
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