Research on numerical simulation method of ice resistance for an ice-going ship navigating in brash ice channel
In order to simulate the interaction between ship and ice for an ice going ship navigating in brash ice channel accurately,based on the Lagrange-Euler method,Discrete element method(DEM)was adopted to simulate the ice resistance of a liquid natural gas(LNG)bunker ship navigating in brash ice channel.Except for that,the availability and reliability of this numerical method were evaluated by comparing the results of numerical simulation with ice model tests.The results show that the numerical simulation method proposed in this paper could show the interaction between ice floes and ship,and the computational error is within 5%,which could satisfy the requirement of engineering application and it could be applied to ice resistance calculation and optimization of similar ice-going ship directly.
discrete element method(DEM)ice resistancenumerical simulation methodice model tank test