Journal ArticleDOI
Hydroelastic response of an ice sheet with a lead to a moving load
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TLDR
In this article, a boundary integral method (BIM) for the flow under the ice is combined with the finite difference method for the ice plate with free-free edge conditions to solve the coupled problem of linear hydroelasticity.Abstract:
The hydroelastic symmetric response of a floating ice sheet caused by a pressure moving either in the ice lead or on the infinite ice sheet with a crack (a lead of zero width) is investigated. The ice sheet is modeled as a viscoelastic thin plate. The water is of constant depth. The flow under the ice is potential and linear. A boundary integral method (BIM) for the flow under the ice is combined with the finite difference method for the ice plate with free-free edge conditions to solve the coupled problem of linear hydroelasticity. Numerical results for deflections and stress distributions are shown to agree well with the available results by others. The proposed approach can be applied to problems with different edge conditions and different positions of the load with respect to the lead. The ice responses are studied with respect to the speed of the load. The speed can be subcritical, critical, and supercritical with respect to the critical speed for a floating infinite elastic plate. The speeds of the load, which provide maximum deflection, maximum stress, and maximum wave-making resistance, are determined. All these speeds are different and greater than the critical speed for an infinite elastic plate. The effect of the ice thickness, lead width, and load properties on these speeds is discussed.read more
Citations
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Journal ArticleDOI
Ship resistance when operating in floating ice floes: Derivation, validation, and application of an empirical equation
Luofeng Huang,Li Zhiyuan,Chris P. Ryan,Jonas W. Ringsberg,Blanca Pena,Minghao Li,Li Ding,Giles Thomas +7 more
TL;DR: In this article, an empirical equation that can predict the effects of floating ice floes on ship resistance was developed to aid the designing of ships and route planning for this region, which can predict a ship's fuel consumption in ice-infested seas and dynamically suggest a route with the least safety concern and fuel consumption.
Journal ArticleDOI
A review on the progress and research directions of ocean engineering
TL;DR: In this article , the authors present a review of ocean engineering research over the last 50+ years with the aim to understand the technological challenges and evolution in the field, investigate whether ocean engineering studies meet present global demands, explore new scientific/engineering tools that may suggest pragmatic solutions to problems, and identify research and management gaps, and the way forward.
Journal ArticleDOI
Viscoelastic Wave–Ice Interactions: A Computational Fluid–Solid Dynamic Approach
TL;DR: In this paper , a computational fluid-solid dynamic model is employed to simulate the interaction between water waves and a consolidated ice cover, and the decay rate and wave dispersion predicted by the model are shown to be in good agreement with experimental results.
Journal ArticleDOI
Numerical simulation on the breakup of an ice sheet induced by regular incident waves
TL;DR: In this article , a numerical model simulating the breakup of an ice sheet induced by regular incident waves is firstly established based on the Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) coupling method.
Journal ArticleDOI
Motion of a submerged body in a near-surface water environment
TL;DR: In this article , the authors considered the motion of a submerged body near the free surface of a liquid and a liquid covered with ice cover, both theoretically and experimentally, and the relationship between the vertical displacement and speed of movement of the submerged body, as well as the effect on the investigated parameters of the ice cover was established.
References
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Journal ArticleDOI
Calculation of Nonlifting Potential Flow About Arbitrary Three-Dimensional Bodies
John L. Hess,A. M. O. Smith +1 more
Journal ArticleDOI
Of ocean waves and sea-ice revisited
TL;DR: In this article, Squire et al. distinguish between two major seaice types: continuous ice, such as is normally found in the central Arctic, and the ice of marginal neighbourhoods, i.e. near the open sea, where individual ice floes and cakes are present at typically lower levels of concentration.
Book
Moving Loads on Ice Plates
TL;DR: In this article, the authors discuss the properties of ice plates and their properties in terms of moving load experiments and continuoustime mechanics, as well as theoretical advances in these areas.
Journal ArticleDOI
Waves due to a steadily moving source on a floating ice plate
TL;DR: In this article, steady wave patterns generated by a steadily moving source on a water-ice system that is assumed to be homogeneous and of infinite horizontal extent, using asymptotic Fourier analysis to give a simple description of the wave pattern far from the source.
Journal ArticleDOI
Wave scattering by narrow cracks in ice sheets floating on water of finite depth
D. V. Evans,Richard Porter +1 more
TL;DR: In this article, an explicit solution for the scattering of an obliquely incident flexural-gravity wave by a narrow straight-line crack separating two semi-infinite thin elastic plates floating on water of finite depth is provided.