Abstract
The effect of waves on ice sheet is critical in the marginal ice zone (MIZ). Waves break large sea ice into small pieces and cause them to collide with each other. Simultaneously, the interaction between sea ice and waves attenuates these waves. In this study, a numerical research is conducted based on a computational fluid dynamics (CFD) method to investigate the response of single ice floe to wave action. The obtained results demonstrate that the sea ice has a violent six degree of freedom (6DoF) motion in waves. Ice floes with different sizes, thicknesses, and shapes exhibit different 6DoF motions under the action of waves. The heave and surge response amplitude operator (RAO) of the sea ice are related to wavelength. Furthermore, the overwash phenomenon can be observed in the simulation. The obtained results are compared with the model test in the towing tank based on artificial ice, and they agree well with test results.
Highlights
The marginal ice zone (MIZ) is the area between open water and level ice sheet that is directly affected by waves
The coupling effect of sea ice and wave influences the safety and navigation performance of ships sailing in this area, and the need to research on the interaction between sea ice and waves before moving ahead to study the ship–wave–ice interaction in the MIZ
Marchenko A et al [5] carried out a field observation and test on the wave–sea ice interaction process in the MIZ of Barents Sea, and they determined that the high-frequency wave will be significantly damped when propagating under the sea ice
Summary
The marginal ice zone (MIZ) is the area between open water and level ice sheet that is directly affected by waves. At the beginning of the research, field observation and theoretical study were carried out to observe the attenuation of waves, the fracture mechanism, and movement form of sea ice in the MIZ. By matching the vertical velocity with stress at the interfaces of sea ice, water, and air, the boundary condition of the dispersion relationship interface of the wave is obtained Against this backdrop, Carolis D G [17] developed a two-layer viscous fluid model considering the viscosity of sea water. Based on experiments and numerical simulations, Dai M et al [21] studied the thickness of sea ice accumulated under wave action. Based on an unstructured grid surface-wave model, Zhang Y et al [24] studied the wave attenuation and propagation characteristics triggered by sea ice and simulated the evolution trend of the wave–sea ice interaction process. The calculation results are compared with the model test results in the towing tank
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
