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http://dx.doi.org/10.3744/SNAK.2018.55.4.313

An Estimation of Attainable Speed in Brash Ice using Empirical Formula  

Kim, Hyun soo (Dept. of Naval Architecture and Ocean Engineering, Inha Technical College)
Han, Donghwa (Dept. of Naval Architecture and Ocean Engineering, Inha University)
Lee, Jae-Bin (Dept. of Naval Architecture and Ocean Engineering, Inha University)
Jeong, Seong-Yeob (Korea Research Institute of Ships & Ocean Engineering(KRISO))
Publication Information
Journal of the Society of Naval Architects of Korea / v.55, no.4, 2018 , pp. 313-320 More about this Journal
Abstract
As ships operating on the Arctic route are exposed to various ice environments such as level ice, pre-swan, pack ice, ice ridge and brash ice, it is essential to estimate the ice resistance according to the ice environment. Methods for estimating the ice resistance include a method using mathematical model, numerical simulation, and a method using empirical formula. In this study, empirical formulas are used to estimate the ice resistance. The purpose of this study is to develop the ice resistance and attainable speed estimation program(I-RES) for brash ice. To develop the Brash ice attainable speed estimation algorithm, the environmental characteristics of the brash ice were analyzed, and the results of I-RES were evaluated by comparing the model test results of brash ice. The accuracy of I-RES for brash ice is around 20% in this study but it will be more developed near future with accumulating more model test results and calculation results.
Keywords
Brash ice; Brash ice resistance; Attainable speed; Ice model test;
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