Work

Experimental evaluation of the vortex-induced vibration suppression of catenary flexible riser with helical strakes

Year: 2025

Type: article

Abstract: This study experimentally investigates the vortex-induced vibration (VIV) suppression of a catenary flexible riser equipped with helical strakes subjected to sheared flows. The performances of different coverage ratios and arrangements are compared in the reduced velocity U r m range of 6.05–36.89. The experimental results indicate that helical strakes can effectively reduce the dominant vibration mode and response amplitude. Nevertheless, the coupling between the in-plane and out-of-plane responses is enhanced. A uniform arrangement with 60 % coverage is recommended, considering both response amplitude and mode reduction.

Source: Ocean Engineering

DOI: 10.1016/j.oceaneng.2025.123909

Authors: Hongjun Zhu, Bin Luo, Hongtao Hao, Yue Gao, Tongming Zhou

Institutions: Southwest Petroleum University, State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, The University of Western Australia

Language: English

Topic: Fluid Dynamics and Vibration Analysis

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: hybrid

Estimated APC paid: $4,150