Interaction of free oscillating flat plate and VIV of a circular cylinder in laminar flow

Jebelli, Mohammad; Masdari, Mehran

doi:10.1016/j.jfluidstructs.2022.103648

Journal of Fluids and Structures

2022

DOI: 10.1016/j.jfluidstructs.2022.103648

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Interaction of free oscillating flat plate and VIV of a circular cylinder in laminar flow

Mohammad Jebelli

Mehran Masdari

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Cited by 6 publications

References 36 publications

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Exploring submergence impact on flow-induced motion energy-harvesting with circular-triangular prisms

Sharifi,

Omidyeganeh,

Masdari

2024

J. Ocean Eng. Mar. Energy

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Recent advancements in energy-harvesting have utilized Flow-Induced Motion (FIM) as a renewable source, diverging from past efforts aimed at minimizing FIM's adverse effects. This study introduces kinetic energy converters using alternating lift technology (ALT), employing a prism with a Circular-Triangular (Cir-Tria) shape, coupled with a spring and damper, to generate energy. Utilizing computational fluid dynamics in OpenFOAM for Reynolds numbers between 2 × 103 and 13 × 103 and varying submergence depth ratio from 0.98 to 5.91, this research employs a moving computational grid, two-dimensional incompressible Navier–Stokes equations, the k-omega Shear Stress Transport (SST) turbulence model, the Volume of Fluid, VOF, two-phase model, and the cylinder mass–spring–damper equation. Findings show that approaching the flow surface negatively impacts the FIM response due to the interaction of vortices from the flow surface and the prism’s upper shear layer. This interaction weakens and neutralizes the upper vortices, altering the flow structure around the prism and the governing FIM phenomena. Proximity to the free surface significantly affects FIM responses, with a notable decrease in vibration amplitude and energy conversion as the submergence depth ratio increases from 0.98 to 5.91. Maximum system efficiency of 1.4% is observed in the VIV initial branch at infinite submergence (single-phase flow). Beyond a submergence depth ratio of 5.91, FIM amplitude and energy conversion flatten, indicating negligible free surface effects.

show abstract

Exploring submergence impact on flow-induced motion energy-harvesting with circular-triangular prisms

Sharifi,

Omidyeganeh,

Masdari

2024

J. Ocean Eng. Mar. Energy

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show abstract

Flow characteristics and passive flow control of circular cylinders with triangular vortex generators: An experimental investigation

Aksoy

2024

Applied Ocean Research

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Suppression of Vortex-induced vibration of a circular cylinder with a pair of curved plates

Zhang

et al. 2023

Ocean Engineering

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Interaction of free oscillating flat plate and VIV of a circular cylinder in laminar flow

Cited by 6 publications

References 36 publications

Exploring submergence impact on flow-induced motion energy-harvesting with circular-triangular prisms

Exploring submergence impact on flow-induced motion energy-harvesting with circular-triangular prisms

Flow characteristics and passive flow control of circular cylinders with triangular vortex generators: An experimental investigation

Suppression of Vortex-induced vibration of a circular cylinder with a pair of curved plates

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