Author(s): Nobuhisa Kobayashi; Susan Frankenstein
Linked Author(s): Susan Frankenstein
Keywords: No Keywords
Abstract: A quantitative understanding of wave and ice interaction is essential for designing oil exploration and production structures in partially ice-covered waters. First, previous studies on the wave and ice interaction are reviewed to elucidate the present knowledge of this subject. At present, the ice is modelled either as a thin elastic or inelastic plate or as a rigid body, depending on the length and time scales involved in a specific problem, while potential flow theory is normally used assuming that the water is incompressible and inviscid and the flow is irrotational. Second, the motion of a vertical axisymmetric ice floe or iceberg under the action of incident linear waves is computed and compared with available small-scale model tests. The comparison indicates that the agreement between the potential flow theory and the test data is only qualitative. The reasons for this qualitative nature of the agreement are given in the light of the limitations of the theoretical and experimental approaches. Furthermore, the wave drift force on the vertical axisymmetric ice mass is discussed briefly.
Year: 1986