Vortex-induced vibration of a sinusoidal wavy cylinder: The effect of wavelength DOI
Fuwang Zhao, Lingwei Zeng, Honglei Bai

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(8)

Published: Aug. 1, 2024

While considerable research has addressed flow around stationary sinusoidal wavy cylinders, studies on vortex-induced vibration (VIV) of elastic-supported cylinders still remain limited. This study aims to address this gap through a series water tunnel experiments, focusing the effects cylinder's spanwise wavelength. Three typical wavelengths (λ* = 1.8, 3.6, and 6.0) are considered, with first third identified as optimal for reducing fluid forces (lift by over 90%) in previous cylinder studies. The oscillates transversally at range reduced velocities Ur 3.0–12.0, corresponding Reynolds numbers (1.5–7.0) × 103. Results indicate that, compared smooth cylinder, λ* 1.8 experiences oscillation throughout VIV regime, while 3.6 or 6.0 undergo enhanced broader lock-in range. tend occur higher Ur, leading an extension lower branch. Frequency analysis shows despite affecting amplitude, surface retains features. These results reveal notable dependence force-displacement phase lag Finally, we provide detailed discussion phase-averaged time-averaged structures from time-resolved particle image velocimetry measurement. Overall, addresses concerning impact wavelength behavior elastically supported providing significant insights development practical strategies suppression enhancement.

Language: Английский

A review of flow-induced vibration in wind and oceanic flow: Mechanisms, applications, optimizations, and challenges DOI
M. Gong, Bassam B. Dally

Ocean Engineering, Journal Year: 2025, Volume and Issue: 325, P. 120748 - 120748

Published: March 3, 2025

Language: Английский

Citations

0
Unveiling the dynamics of 2-DOF flow-induced vibrations and heat transfer: A comprehensive study of multi-cylinder configurations DOI Creative Commons
Ussama Ali, Md. Islam, Isam Janajreh

et al.

International Communications in Heat and Mass Transfer, Journal Year: 2025, Volume and Issue: 164, P. 108780 - 108780

Published: March 3, 2025

Language: Английский

Citations

0
Steady blowing control for tail stall flutter at large angle of attack DOI Creative Commons
Ziyu Wang, Teng Long,

Baoshou ZHANG

et al.

Chinese Journal of Aeronautics, Journal Year: 2025, Volume and Issue: unknown, P. 103531 - 103531

Published: April 1, 2025

Language: Английский

Citations

0
Vortex-induced vibration of a sinusoidal wavy cylinder: The effect of wavelength DOI
Fuwang Zhao, Lingwei Zeng, Honglei Bai

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(8)

Published: Aug. 1, 2024

While considerable research has addressed flow around stationary sinusoidal wavy cylinders, studies on vortex-induced vibration (VIV) of elastic-supported cylinders still remain limited. This study aims to address this gap through a series water tunnel experiments, focusing the effects cylinder's spanwise wavelength. Three typical wavelengths (λ* = 1.8, 3.6, and 6.0) are considered, with first third identified as optimal for reducing fluid forces (lift by over 90%) in previous cylinder studies. The oscillates transversally at range reduced velocities Ur 3.0–12.0, corresponding Reynolds numbers (1.5–7.0) × 103. Results indicate that, compared smooth cylinder, λ* 1.8 experiences oscillation throughout VIV regime, while 3.6 or 6.0 undergo enhanced broader lock-in range. tend occur higher Ur, leading an extension lower branch. Frequency analysis shows despite affecting amplitude, surface retains features. These results reveal notable dependence force-displacement phase lag Finally, we provide detailed discussion phase-averaged time-averaged structures from time-resolved particle image velocimetry measurement. Overall, addresses concerning impact wavelength behavior elastically supported providing significant insights development practical strategies suppression enhancement.

Language: Английский

Citations

1