ABSTRACT

The polar vessels sailing in Marginal Ice Zone (MIZ) are subjected to external loads including wave load and ice load. Therefore, the study of wave and sea ice interaction is of significance for ship design and safety from the perspective of external loads. Based on Computational Fluid Dynamics (CFD) software FLUENT, a Two-Dimensional (2D) numerical water tank is established by using Volume of Fluid (VOF) model and k-epsilon turbulence model. Based on wave theory, the waves are generated by a push pedal at one end of the water tank and are absorbed by using the method of momentum source wave elimination at the other end. Sea ice is simplified into a one-end rigid fixed plate for shoreconnecting ice cover or a floating rigid plate for an ice floe. The responses of the plate under wave load are simulated and analyzed, including the pressure and force as well as the stress of the fixed plate and the motion of the floating plate. For a given incident wave, the threshold value of ice length for the fracture of the sea ice is discussed, referring to the physical and mechanical properties of sea ice in the Bohai Bay.