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RESEARCH PAPERS: Ocean Engineering

Wave-Island Interactions About Circular Artificial Islands

[+] Author and Article Information
J. M. Niedzwecki

Department of Civil Engineering, Texas A&M University, College Station, Tex. 77843

J. Energy Resour. Technol 106(1), 113-119 (Mar 01, 1984) (7 pages) doi:10.1115/1.3231006 History: Received October 25, 1982; Revised July 29, 1983; Online October 22, 2009

Abstract

The behavior of waves interacting with islands has gained renewed interest with the construction of exploratory drilling islands in the Arctic. This paper focuses upon the behavior of waves incident upon axisymmetric islands characterized by circular contours which vary with water depth. The island profiles of Arthur and Pocinki, which have closed form solutions, and a single tier conical island are examined. A new dimensionless formulation of Arthur’s ray theory and an extremely accurate numerical procedure to evaluate the ray integrals are presented. It is shown that each island profile leads to a distinct wave pattern about the island. These wave patterns are presented in figures which portray the wave capture and wave breaking about circular islands. It is intended that the methodology presented be used to initially assess trends and to evaluate the need for more refined analyses.

Copyright © 1984 by ASME
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