... interaction vortex-induced vibration Accepted Manuscript Not Copyedited Journal of Offshore Mechanics and Arctic Engineering. Received April 25, 2024; Accepted manuscript posted September 20, 2024. doi:10.1115/1.4066755 Copyright © 2024 bAySAMSEMJEournal of Offshore Mechanics and Arctic Engineering 1...

... and flow field surrounding a circular cylinder undergoing vortex-induced vibration (VIV). Physics-informed neural networks (PINNs) are powerful deep learning techniques for solving governing partial differential equations (PDEs) of dynamic systems as an alternative to complex numerical methods...

... parameters (damping, stiffness) and Reynolds number (Re) are varied in the tests. The onset inflow velocity of oscillation is reduced and back-to-back vortex-induced vibration (VIV) and galloping is achieved, when placing interference cylinders in the vicinity of the basic oscillator. The interference due...

..., whereas the wake vortices of the upper, lower, and desynchronized branches suppress the vibration. At the critical point between the initial branch and the upper branch of vortex-induced vibration (VIV), there is a 90 degree phase jump, and the instantaneous phase difference fluctuation between the wake...

...Fredi Cenci; Aline Leal de Lima Gontarski; Maria Eduarda Felippe Chame; Cláudia Martins Peri Machado dos Santos; Rodolfo Trentin Gonçalves; André Luís Condino Fujarra This work presents experimental results on vortex-induced vibration (VIV) of a horizontal cylinder with 2.69 m in length, 21 mm...

... , “ Vortex-Induced Vibration of Spar Platforms for Floating Offshore Wind Turbines ,” Wind Energy , 21 ( 11 ), pp. 1169 – 1176 . 10.1002/we.2221 [10] Gonçalves , R. T. , Chame , M. E. F. , Silva , L. S. P. , Koop , A. , Hirabayashi , S. , and Suzuki , H. , 2021...

...Guang Yin; Marek Jan Janocha; Muk Chen Ong The objective of the present study is estimating hydrodynamic forces acting on cylinders undergoing vortex-induced vibration (VIV) using dynamic mode decomposition (DMD). The cylinders are subjected to a uniform incoming flow at a laminar Reynolds number...

...Marek Jan Janocha; Lukas Philip Fabricius; Guang Yin; Muk Chen Ong Three-dimensional (3D) numerical simulations of the flow around a cylinder undergoing vortex-induced vibration (VIV) at Re = 3900 (defined as Re = U ∞ D/ ν , where U ∞ is the inlet flow velocity, D is the diameter of the cylinder...

... the conventional Strouhal number relationship. It is well established for vortex-induced vibration (VIV) that the eddy-shedding frequency will synchronize with the near-resonant motions of a dynamically oscillating cylinder, such that the resultant bandwidth of lock-in exhibits a wider range of effective Strouhal...

...Decao Yin Deepwater steel lazy wave risers (SLWR) subject to vessel motion will be exposed to time-varying oscillatory flow, vortices could be generated and the cyclic vortex-shedding force causes the structure vibrate, such fluid–structure interaction is called vortex-induced vibrations (VIV...

...Daniel P. Vieira; Guilherme R. Franzini; Fredi Cenci; André L. C. Fujarra An experimental setup was built to investigate the vortex-induced vibration (VIV) phenomenon on yawed and inclined flexible cylinders, in which five yaw angles θ = 0 deg, 10 deg, 20 deg, 30 deg, and 45 deg and five azimuth...

...Wenyong Yuan; Hai Sun; Eun Soo Kim; Hui Li; Nicholas Beltsos; Michael M. Bernitsas The vortex-induced vibration for aquatic clean energy (VIVACE) converter harnesses hydrokinetic energy by enhancing flow-induced oscillations (FIOs) of elastically supported rigid cylinders in a river, tide, or ocean...

...Sang Woo Kim; Svein Sævik; Jie Wu; Bernt Johan Leira As the development of offshore oil and gas continues to move into deeper waters, the risers connecting the seabed infrastructure to the offshore platform are getting longer. This means that vortex-induced vibration (VIV) may occur at different...

... for publication in the J ournal of O ffshore M echanics and A rctic E ngineering . 20 03 2020 17 11 2020 17 11 2020 12 01 2021 vortex-induced vibration cylinders piggyback POD DMD computational fluid dynamics hydrodynamics The flow around a bluff body at high...

... , 25 ( 12 ), p. 123601 . 10.1063/1.4832956 [13] Zhao , M. , Kaja , K. , Xiang , Y. , and Cheng , L. , 2016 , “ Vortex-Induced Vibration of Four Cylinders in an In-Line Square Configuration ,” Phys. Fluids , 28 ( 2 ), p. 023602 . 10.1063/1.4941774 [14] Wolfgang...

...Jie Wu; Decao Yin; Elizabeth Passano; Halvor Lie; Ralf Peek; Octavio E. Sequeiros; Sze Yu Ang; Chiara Bernardo; Meliza Atienza Helical strakes can suppress vortex-induced vibrations (VIVs) in pipelines spans and risers. Pure in-line (IL) VIV is more of a concern for pipelines than for risers...

... structures dynamics of structures fluid–structure interaction hydrodynamics vortex-induced vibration Offshore wind energy is one of the largest renewable sources. A considerable amount of wind energy is located even further offshore, in deeper waters. Due to the limitation of using the bottom...

...Ralf Peek Although it has long been recognized that vortex-induced vibrations of subsea pipeline spans involve nonlinear and inelastic behavior, the current practice to assess such spans for fatigue and ultimate loading conditions is based on the modal analysis assuming linear behavior...

.... Vortex-induced vibration mitigation devices such as helical strakes and fairings are commonly deployed to reduce the vibrations of risers. Most of the experimental validation of these devices were in relative low-Reynolds number regime (subcritical) simply due to the limitation of testing facilities...

... systems fluid–structure interaction hydrodynamics vortex-induced vibration Nowadays, the typical offshore multi-column platforms present three or four columns, with its column geometry being rather circular or square. This implies that the flow around these is very much different than the well...