Research on Dynamic Response of Top Tensioned Riser in Ocean Internal Solitary Wave
JIANG Hai
GUO Haiyan
ZHAO Jing
ZHANG Lin
WANG Wei
Abstract：Based on commercial software FLUENT,a numerical flume of ocean internal solitary wave of large amplitude is established,in which vertical distributions of horizontal velocity and acceleration induced by internal solitary wave are gained.Then combined with modified Morison formula,the internal solitary wave force on top tensioned riser is calculated,and the finite element method are adopted to simulate the dynamic response of top tensioned riser under internal solitary wave in time domain.The influences of the top tension,internal flow and wave amplitude are discussed in the end.The results show that the internal solitary wave produces strong shearing action on the riser,making severe deformation and high stress occur in the riser.The maximum displacement and stress appear when wave trough arrives,and the displacement and stress in the upper fluid are greater than that in the lower part of the fluid.
Keywords：internal solitary wavenumerical wave flumeMorison formulatop tensioned riserdynamic response
Publication Date：2017-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：8( 60-67 )