TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Numerical simulation of ship dynamics in terms of maneuvrability and motions.



Full text article ( in russian)

Year

 
2018

Issue

 
384

Volume

 
2

Pages

 
29-38

Caption

 
Numerical simulation of ship dynamics in terms of maneuvrability and motions.

Authors

 
Blischik A., Taranov A.

Keywords

 
numerical simulation, ship dynamics, motions, maneuverability, supercomputer, KSRC

DOI

 
10.24937/2542-2324-2018-2-384-29-38

Summary

 
Object and purpose of research.This paper gives CFD solution results to certain problems of ship dynamics: selfpropelled movement of KVLCC2 tanker and change in S175 container ship position under wave load. The purpose of this work is to demonstrate the readiness level of numerical simulation technology for this class of problems.
Subject matter and methodsParameters of viscous flow around ship models are found from the solution (as per control-volume method) of unsteady Reynolds equations closed by the turbulence model. Two-phase flow (water/air) is simulated as per Volume of Fluid (VOF) method. The system of dynamic equations of the moving solid-body is solved for 6 degrees of freedom.
Main results.Numerical simulation results have shown a good correlation with the test data for ship entrance to gyration and motions in regular waves at different wave heading angles. The work has shown that currently available numerical methods and supercomputers are capable of predicting dynamic parameters of marine objects with the accuracy sufficient for engineering purposes.
Conclusion.State-of-the-art computers and numerical simulation technologies can reduce the scope of tests, and when the tests are still necessary, even supplement them considerably. Besides, numerical simulation can be performed directly for a full-scale object in real conditions, taking into account real properties of its environment.

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