Ship operation in brash ice: results of investigations

• Published in: Arctic and Antarctic Research
• Main Authors: K. E. Sazonov, К. Е. Сазонов
• Other Authors: Study was implemented within project SIMREC “Simulator for Improving Cross-border Oil Spill Response in Extreme Conditions”. Project are co-funded by the European Union, the Russian Feder, Исследование выполнено по Проекту SIMREC “Simulator for Improving Cross-border Oil Spill Response in Extreme Conditions”. Проект софинансируется Европейским Союзом, Российской Федерацией и Республикой Финляндия.
• Format: Article in Journal/Newspaper
• Language: Russian
• Published: Государственный научный центр Российской Федерации Арктический и антарктический научно-исследовательский институт 2021
• Subjects: тертый лед; ice basin; ice resistance; method of discrete elements; propeller; ледовое сопротивление; ледовый бассейн; метод дискретных элементов; Arctic
• Online Access: https://www.aaresearch.science/jour/article/view/406; https://doi.org/10.30758/0555-2648-2021-67-4-406-424

The paper gives a review of the studies concerned with operation of vessels in brash ice. Recently, the ice conditions have received an ever increasing attention of the researchers related to the fact that shipping in the Arctic regions and freezing seas, as well as in inland waterways has been scaled up. One of the important fields of brash ice studies is specifics of sailing under these conditions and primarily determination of the ship ice resistance. The paper shows that theoretical methods combined with physical modeling in ice basins are used for determination of the ship ice resistance under brash ice conditions. The paper traces the evolution of theoretical models utilized for calculations. It is mentioned that the models are mainly based on loose material mechanics. A rapidly developing computer modeling of ship motion in brash ice based on discrete element method is considered. Physical modeling techniques used for modeling brash ice in ice basin are described, and challenges of experimental investigations are discussed. It is pointed out that experimental studies in ice basin can provide valuable data not only about ship ice resistance but also about the mechanisms giving rise to ice channels filled with brash ice. The paper describes the methods for studying operation of ship propellers in brash ice conditions. It is concluded that further research into brash ice is needed. В статье приведен обзор исследований, посвященных изучению движения судов в тертых льдах. Показано, что для определения ледового сопротивления судна в указанных условиях используются теоретические методы исследования и метод физического моделирования в ледовых бассейнах. В работе прослежена эволюция теоретических моделей, применяемых для расчета. Описаны методы физического моделирования тертого льда в ледовом бассейне, обсуждены основные трудности, возникающие при экспериментальных исследованиях. Рассмотрено активно развивающееся в настоящее время компьютерное моделирование движения судна в тертых льдах на основе методов ...