Geodesic
Experimental investigation of the fall of helical bodies in a fluid
Russian journal of nonlinear dynamics, Tome 13 (2017) no. 4, pp. 585-598.

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This paper presents a comparative analysis of computations of the motion of heavy three-bladed screws in a fluid along with experimental results. Simulation of the motion is performed using the theory of an ideal fluid and the phenomenological model of viscous friction. For experimental purposes, models of three-bladed screws with various configurations and sizes were manufactured by casting from chemically hardening polyurethane. Comparison of calculated and experimental results has shown that the mathematical models considered essentially do not reflect the processes observed in the experiments.
Keywords: motion in a fluid, helical body, experimental investigation. 
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E. V. Vetchanin; A. I. Klenov. Experimental investigation of the fall of helical bodies in a fluid. Russian journal of nonlinear dynamics, Tome 13 (2017) no. 4, pp. 585-598. http://geodesic.mathdoc.fr/item/ND_2017_13_4_a10/

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