Theory of the Ship and Construction Mechanics               
Original article
http://doi.org/10.24866/2227-6858/2022-4/13-22

Zemlyak V., Vasilyev A., Kozin V., Chingalaev V.

VITALIY L. ZEMLYAK, Candidate of Physico-Mathematical Sciences, Associate Professor, vellkom@list.ru, http://orcid.org/0000-0002-3218-5738
ALEXEY S. VASILYEV, Candidate of Engineering Sciences, Associate Professor, vasil-grunt@mail.ru, http://orcid.org/0000-0001-7783-0000
SERGEY A. CHINGALAEV, Postgraduate Student, vellkom@list.ru
Department of Technical Disciplines
Sholom-Aleichem Priamursky State University
Birobidzhan, Russia
VICTOR M. KOZIN, Doctor of Engineering Sciences, Professor, vellkom@list.ru
Chief Researcher of the Laboratory for Problems of Creation and Processing of Materials and Products
Institute of Machine Science and Metallurgy FEB RAS
Komsomolsk-on-Amur, Russia

Movement of an immersed body in a near-surface water environment
at a shallow bottom

Abstract. The forces and moments, acting on an immersed body from the side of the liquid, have a significant effect on the nature of its motion. The depth of the water area, in which the body moves, can have a significant influence on the parameters under consideration. Despite the importance of studying these parameters, which are responsible for the safety and maneuverability of an underwater vehicle, there are practically no theoretical and especially experimental works on this topic. In this article, the authors propose an algorithm developed on the basis of the ANSYS 19 R2 Academic Research software package, which allows determining the forces and moments acting on an immersed body asymmetric shape when it moves in a near-surface aquatic environment at different speeds with a limited bottom depth. The obtained results are compared with the data of model experiments. The influence of the depth of the water area on the dependences of the studied parameters has been established.

Keywords: immersed body, lifting force, hydrodynamic moment, free surface, bottom depth

See the reference in English at the end of the article

For citation: Zemlyak V., Vasilyev A., Kozin V., Chingalaev V. Movement of an immersed body in a near-surface water environment at a shallow bottom. FEFU: School of Engineering Bulletin. 2022;(4):13–22. (In Russ.).