Interaction of wave with a body submerged below an ice sheet with multiple arbitrarily spaced cracks

The problem of wave interaction with a body submerged below an ice sheet with multiple arbitrarily spaced cracks is considered, based on the linearized velocity potential theory together with the boundary element method. The ice sheet is modeled as a thin elastic plate with uniform properties, and z...

Full description

Saved in:
Bibliographic Details
Published in:Physics of fluids (1994) 2018-05, Vol.30 (5)
Main Authors: Li, Z. F., Wu, G. X., Ji, C. Y.
Format: Article
Language:English
Subjects:
Bending moments
Boundary element method
Cracks
Elastic plates
Elastic properties
Fluid dynamics
Green's functions
Hydrodynamic coefficients
Integral equations
Mathematical models
Nonlinear programming
Physics
Potential theory
Wave interaction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The problem of wave interaction with a body submerged below an ice sheet with multiple arbitrarily spaced cracks is considered, based on the linearized velocity potential theory together with the boundary element method. The ice sheet is modeled as a thin elastic plate with uniform properties, and zero bending moment and shear force conditions are enforced at the cracks. The Green function satisfying all the boundary conditions including those at cracks, apart from that on the body surface, is derived and is expressed in an explicit integral form. The boundary integral equation for the velocity potential is constructed with an unknown source distribution over the body surface only. The wave/crack interaction problem without the body is first solved directly without the need for source. The convergence and comparison studies are undertaken to show the accuracy and reliability of the solution procedure. Detailed numerical results through the hydrodynamic coefficients and wave exciting forces are provided for a body submerged below double cracks and an array of cracks. Some unique features are observed, and their mechanisms are analyzed.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.5030378