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A Study on the Behavior of Flexible Riser for Upwelling Deep Ocean Water by a Numerical Method  

JUNG DONG-HO (Ocean Development System Laboratory, KORDI/KRISO)
KIM HYEON-JU (Ocean Development System Laboratory, KORDI/KRISO)
PARK HAN-IL (Division of Ocean Development Engineering, Korea Maritime University)
Publication Information
Journal of Ocean Engineering and Technology / v.18, no.4, 2004 , pp. 15-22 More about this Journal
Abstract
Static and dynamic analyses of a very flexible and light riser, for upwelling the deep ocean water, is performed. In this numerical study, an implicit finite difference algorithm is employed for three-dimensional riser equations. Fluid non-linearity and bending stiffness are considered and solved, using the Newton-Raphson iteration. Maintaining the depth of end point of a flexible and light riser is very important for upwelling deep ocean water in a floating type development system. Weight is attached at the end point of the riser in order to maintain its intake depth. It is designed under the strong surface current and the configuration of the rise is predicted. In the dynamic analysis, the tension variation at the top point of the riser is presented. T e results of this study can contribute to the design of the development system in floating type for upwelling deep ocean water.
Keywords
Deep Ocean Water; Flexible Riser; Static and Dynamic Analysis; Finite Difference Method; Intake Depth;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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