Theory of the Ship and Construction Mechanics
Article: received: 15.06.2020; reviewed: 13.08.2020; accepted: 18.08.2020.
The study was supported by a grant from the Russian Science Foundation (project N 16-19-10097).
DOI: http://www.dx.doi.org/10.24866/2227-6858/2020-4-2

Zemlyak V., Kozin V., Vasilyev A.

VITALIY ZEMLYAK, Candidate of Physics and Mathematics Sciences, Associate professor,
ORCID: 0000-0002-3218-5738, ResearcherID: Y-2761-2018, ScopusID 36085759800, vellkom@list.ru (corresponding author)
ALEXEY VASILYEV, Candidate of Engineering Sciences, Associate professor,
ORCID: 0000-0001-7783-0000, ResearcherID: Q-9416-2018, ScopusID: 57203895897, vasil-grunt@mail.ru
Sholom-Aleichem Priamursky State University
Birobidzhan, Russia
VICTOR KOZIN, Doctor of Engineering Sciences, Professor, Chief researcher,
ORCID: https://orcid.org/0000-0002-2673-469X, ResearchersID: S-6053-2016, ScopusID: 8548383800, kozinvictor@rambler.ru
Institute of Machine Science and Metallurgy FEB RAS
Komsomolsk-on-Amur, Russia

The movement of an submerged body near the free surface of a liquid

Abstract: To perform various tasks, submarines are often operated in near-surface aquatic environments. In such conditions, the maneuverability and controllability of the vessel become a critical factor in its safe operation. The forces exerted by the liquid on the submerged body can have a significant effect on the nature of its movement. Using the ANSYS 19 R2 Academic Research software package, the authors performed calculations of the movement of an submerged body at different speeds near the free surface of a liquid. Profiles of the excited surface of the aquatic environment are obtained. The nature of the pressure distribution along the upper surface of an submerged body depending on the speed of movement is analyzed. The dependence of the wave resistance coefficient for a model of a body with given parameters is determined. The speeds of motion were established at which the maximums and minimum values ​​of the wave resistance coefficient were observed. The efficiency of the algorithm is confirmed by comparing with the known experimental data and the results of model experiments performed in the experimental tank.

Keywords: submerged body, free surface of a liquid, wave resistance coefficient

Contribution of the authors: the authors contributed equally to this article.
The authors declare no conflicts of interests.

See the reference in English at the end of the article