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TsAGI Science Journal

ISSN Print: 1948-2590
ISSN Online: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2018027453
pages 395-401

HYDRODYNAMICS OF A THIN FLEXIBLE BODY

Georgii Vladimirovich Logvinovich

ABSTRACT

To clarify the fish swimming mechanism, hydrodynamics of a thin deformable body is studied by the method of plane sections. Simple formulas are derived for estimating the thrust and consumed power in the case of sinusoidal wave deformations of the body axis. Hydrodynamic characteristics of fish motion are estimated. Theoretical results are compared to experimental data.

REFERENCES

  1. Logvinovich, G.V., Hydrodynamics of the flow with free boundaries, Trudy TsAGI, (935):1–188, 1965 (in Russian).

  2. Siekmann, J., Zur Theorie der Bewegung schwimmender Tiere, Forschung Ing., 31(6):192–197, 1965.

  3. Eroshin, V.A., Appearance of a pulling force when a deformed profile is moving, Izv. AN. SSSR, Mek. Zhidkosti Gaza, 6, 1969.

  4. Sedov, L.I., Two-dimensional problems of hydrodynamics and aerodynamics, Gostekhteorizdat, p. 443, 1950 (in Russian).

  5. Alleev, Yu.G., Functional fundamentals of external fish structure, Izd-vo AN SSSR, p. 24, 1963 (in Russian).

  6. Pyatetskii, V.E., Hydrodynamic Characteristics of Swimming of Some High-Speed Fishes, Kiev, Ukraine: Naukova Dumka, 1969.


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