Analysis of Loads and Response on Flexible Riser under the Combined Effects of Wave and Current

Abstract:

A three dimensional computational model is established for the analysis of loads and response of flexible riser in a wave-current coexisting environment. The viscid fluid is assumed incompressible. The flow field is described by continuity equation and Reynolds Average Navier-Stokes equations and solved with the discretization of Finite-Volume Method. The structure responses are analyzed employing finite element method based on three dimensional solid element. The loads and response are calculated through the CFD module System Coupling in software package ANSYS14.5. The results show that the vibration equilibrium position of riser offsets along with the direction of current when wave and current are in the same direction, the response of the riser is larger than that only in wave, the vibration amplitude increases with the current and the results are opposite to the above when wave and current has the opposite direction.

• Periodical: Applied Mechanics and Materials (Volume 723)
• Pages: 120-124
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.723.120
• Online since: January 2015
• Authors: Zi Xin Wu*, Ren Qing Zhu, Si Qi Gu, Zhi Ping Xia, Yang Luo, Hong Yan Li, Ling Wang
• Keywords: Flexible Riser, Loads and Response, Numerical Tank, VOF Method, Wave-Current

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