Work

Vortex and wake-induced vibrations of a circular cylinder pendulum

Year: 2026

Type: article

Abstract: An experimental investigation of vortex- and wake-induced vibrations of a circular cylinder pendulum in cross-flow is presented. The study considers a tandem configuration in which a pendulum-mounted cylinder is immersed in the wake of a stationary upstream cylinder, introducing a rotational degree of freedom distinct from classical translational systems. The isolated pendulum exhibits typical vortex-induced vibration features, including response branches and frequency lock-in. Under wake interference, oscillation amplitudes increase monotonically with reduced velocity, with the strongest response at the smallest spacing ratio. Wake forcing also reduces the oscillation frequency and shifts the transition to the out-of-phase regime toward higher reduced velocities.

Source: Journal of Fluids and Structures

DOI: 10.1016/j.jfluidstructs.2026.104619

Author: F.J. Huera-Huarte

Institution: Universitat Rovira i Virgili

Language: English

Topic: Fluid Dynamics and Vibration Analysis

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,740

Funders: Agència de Gestió d'Ajuts Universitaris i de Recerca, Agencia Estatal de Investigación