Forces and energetics of intermittent swimming 
期刊名称Acta Mechanica Sinica
作者Daniel Floryan; Tyler Van Buren; Alexander J. Smits
摘要Experiments are reported on intermittent swimming motions. Water tunnel experiments on a nominally two-dimensional pitching foil show that the mean thrust and power scale linearly with the duty cycle, from a value of 0. 2 all the way up to continuous motions, indicating that individual bursts of activity in intermittent motions are independent of each other. This conclusion is corroborated by particle image velocimetry (PIV) flow visualizations, which show that the main vortical structures in the wake do not change with duty cycle. The experimental data also demonstrate that intermittent motions are generally energetically advantageous over continuous motions. When metabolic energy losses are taken into account, this conclusion is maintained for metabolic power fractions less than 1.
关键词Unsteady propulsion; Burst and coast; Bio-inspired
参考文献1. Gleiss, A. C., Jorgensen, S. J., Liebsch, N., et al.:Convergent evolution in locomotory patterns of flying and swimming animals. Nat. Commun. 2, 352 (2011)  
2. Fish, F. E., Fegely, J. F., Xanthopoulos, C. J.:Burst-and-coast swimming in schooling fish (notemigonus crysoleucas) with implications for energy economy. Comp. Biochem. Physiol. A:Physiol. 100(3), 633-637 (1991)  
3. Kramer, D. L., McLaughlin, R. L.:The behavioral ecology of intermittent locomotion 1. Am. Zool. 41(2), 137-153 (2001)
4. Weihs, D.:Energetic advantages of burst swimming of fish. J. Theor. Biol. 48(1), 215-229 (1974)  
5. Videler, J. J., Weihs, D.:Energetic advantages of burst-and-coast swimming of fish at high speeds. J. Exp. Biol. 97(1), 169-178 (1982)
6. Lighthill, M. J.:Large-amplitude elongated-body theory of fish locomotion. Proc. R. Soc. Lond. B:Biol. Sci. 179(1055), 125-138 (1971)  
7. Webb, P. W.:Hydrodynamics and energetics of fish propulsion. Fisheries Research Board of Canada, Department of the Environment Fisheries and Marine Service, 190, 158 (1975)
8. Anderson, E. J., Mcgillis, W. R., Grosenbaugh, M. A.:The boundary layer of swimming fish. J. Exp. Biol. 204(1), 81-102 (2001)
9. Blake, R. W.:Functional design and burst-and-coast swimming in fishes. Can. J. Zool. 61(11), 2491-2494 (1983)  
10. Chung, M. H.:On burst-and-coast swimming performance in fishlike locomotion. Bioinspir. Biomim. 4(3), 036001 (2009)  
11. Wu, G., Yang, Y., Zeng, L.:Kinematics, hydrodynamics and energetic advantages of burst-and-coast swimming of koi carps (cyprinus carpio koi). J. Exp. Biol. 210(12), 2181-2191 (2007)  
12. Floryan, D., Van Buren, T., Rowley, C. W., et al.:Scaling the propulsive performance of heaving and pitching foils. J. Fluid Mech. arXiv:1704. 07478 (2017)
13. Sciacchitano, A., Wieneke, B., Scarano, F.:PIV uncertainty quantification by image matching. Meas. Sci. Technol. 24(4), 045302 (2013)  
14. Akoz, E., Moored, K. W.:Unsteady propulsion by an intermittent swimming gait. ArXiv:1703. 06185 (2017)
15. Van Buren, T., Floryan, D., Quinn, D., et al.:Nonsinusoidal gaits for unsteady propulsion. Phys. Rev. Fluids 2, 053101 (2017)  
16. White, F. M.:Fluid Mechanics, 7 edn. McGraw Hill, New York (2011)
17. Dormand, J. R., Prince, P. J.:A family of embedded Runge-Kutta formulae. J. Comput. Appl. Math. 6(1), 19-26 (1980)  
18. Shampine, L. F., Reichelt, M. W.:The MATLAB ODE suite. SIAM J. Sci. Comput. 18(1), 1-22 (1997)  
19. Barrett, D. S., Triantafyllou, M. S., Yue, D. K. P., et al.:Drag reduction in fish-like locomotion. J. Fluid Mech. 392, 183-212 (1999)  
基金项目This work was supported by the US Office of Naval Research (Grant N00014-14-1-0533) (Program Manager Robert Brizzolara). We would also like to thank Dr. Keith Moored for stimulating our interests in intermittent swimming.
作者地址Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA

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