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Sea Floor Wave-Induced Water Kinematics for Design of Pipeline

by Leon Borgman, Univ of Wyoming, Laramie, United States,
Robert Hudspeth, Univ of Wyoming, Laramie, United States,



Document Type: Proceeding Paper

Part of: Civil Engineering in the Oceans V

Abstract:

A statistical model is presented for horizontal velocity and acceleration of water particles beneath storm seas near the sea floor. An expansion of the kinematics with basis functions on a triangular grid is organized so as to allow lateral movement of the pipeline while computing the wave force on the pipeline. Time series of each spline coefficient is computed from frequency domain calculations with linear statistical wave theory, so that great computational efficiency is maintained. A brief discussion is given of the use of the kinematics in the finite element modeling of the pipeline movement and stress history.

Subject Headings: Kinematic waves | Finite element method | Water waves | Wave velocity | Underwater pipelines | Underwater structures | Stress analysis

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