Investigation of the influence of different incoming flow conditions on vortex-induced vibration in a 10:1 rectangular section DOI
Jiaying Wang, Feng Wang,

Jiawu Li

и другие.

Physics of Fluids, Год журнала: 2025, Номер 37(5)

Опубликована: Май 1, 2025

The vortex-induced vibration of a 10:1 rectangular prism under various grid-generated inflow conditions is investigated to understand the influence turbulent flow. A simultaneous vibration-pressure test measures responses and pressure characteristics at angles attack, while fractal theory evaluates regularity fluctuations. surface with without are compared analyze impact flow forms on vibration. results show that although mean coefficient follows same spatial distribution in uniform, spanwise uniform turbulent, non-uniform flows, it higher conditions. Uniform flows alter unilateral asymmetric fluctuation pattern into global suppress Additionally, turbulence enhances energy exchange between section airflow.

Язык: Английский

A novel frequency-domain physics-informed neural network for accurate prediction of 3D Spatio-temporal wind fields in wind turbine applications DOI
Shaopeng Li, Xin Li, Yan Jiang

и другие.

Applied Energy, Год журнала: 2025, Номер 386, С. 125526 - 125526

Опубликована: Фев. 20, 2025

Язык: Английский

Процитировано

9

Experimental investigation of wind loads on solar arrays with varying row configurations and tilt angles DOI
Yongfei Zhao, Yang Yang, Haicheng Zhang

и другие.

Renewable Energy, Год журнала: 2025, Номер unknown, С. 122440 - 122440

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

3

Effective wind fairing combination aerodynamic measures against vortex-induced vibrations of Π-shaped composite bridge decks DOI
Lin Huang, Qi Wang,

Haili Liao

и другие.

Physics of Fluids, Год журнала: 2025, Номер 37(3)

Опубликована: Март 1, 2025

Long-span bridges with the Π-shaped composite girder are prone to significant vortex-induced vibrations (VIVs) because of odious flow around blunt deck. In this paper, VIV performance a and suppression efficiency different shaped fairings were systematically studied through experimental numerical approaches. Severe VIVs original observed in wind tunnel tests, installation lower central vertical stabilizer (LCVS) can reduce but cannot eliminate it thoroughly. Then, mechanism triggering LCVS was investigated computational fluid dynamics dynamic mesh technology. After that, eight designed. The fields fixed installed methods. results indicate that leading-edge vortex on upper surface rear-body generated at inclined web leeward fairing main causes VIV. A smaller degree surface, horizontal nose also achieve same effect. shedding characteristics mainly influenced by length fairing. an effective fairing-based aerodynamic measure optimal shape proposed. Finally, proposed countermeasure is verified experimentally.

Язык: Английский

Процитировано

0

Numerical prediction of vortex-induced vibrations of a long flexible cylinder with variable cross-sections DOI
Jian Tan, Chen An,

Shuai Cui

и другие.

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110176 - 110176

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

Experimental investigation on self-excited vibration and wake interference effects of flexible photovoltaic systems DOI
Haicheng Zhang, Yang Yang, Yongfei Zhao

и другие.

Journal of Wind Engineering and Industrial Aerodynamics, Год журнала: 2025, Номер 262, С. 106098 - 106098

Опубликована: Апрель 8, 2025

Язык: Английский

Процитировано

0

Estimation of amplitude-dependent aerodynamic damping of crosswind-excited flexible structures using square-root cubature Kalman filter with the Sage-Husa estimator DOI

Pingming Huang,

Jinbiao Lai,

Jingying Tian

и другие.

Engineering Structures, Год журнала: 2025, Номер 334, С. 120308 - 120308

Опубликована: Апрель 14, 2025

Язык: Английский

Процитировано

0

Suppression efficiency of the maintenance rail position and guide vanes on vortex-induced vibrations of a streamlined closed-box girder DOI

Jiahui Dong,

Qi Wang, Y. Qiu

и другие.

Physics of Fluids, Год журнала: 2025, Номер 37(4)

Опубликована: Апрель 1, 2025

The vortex-induced vibration (VIV) of the streamlined closed-box girder is greatly affected by attachments. Herein, VIV performance and suppression measures a with an aspect ratio 12.425 are investigated through 1:25 scale section model wind tunnel tests numerical simulations. Severe torsional VIVs at 0° +5° attack angles observed in tests. Subsequently, triggering mechanism explored computational fluid dynamics (CFD) method dynamic mesh technology. Furthermore, it pointed out that measure design should focus on maintenance rail. After that, influence rail position installing guide vanes beside rails systematically, studied CFD method. results show leading-edge vortex above wake under inclined web cause VIV, former plays major role. Moving inward dual-side or inside can reduce VIV. These two share common mechanism: reducing while eliminating web. Finally, optimal setting l/Wb = 1/10 proposed.

Язык: Английский

Процитировано

0

Investigation of the influence of different incoming flow conditions on vortex-induced vibration in a 10:1 rectangular section DOI
Jiaying Wang, Feng Wang,

Jiawu Li

и другие.

Physics of Fluids, Год журнала: 2025, Номер 37(5)

Опубликована: Май 1, 2025

The vortex-induced vibration of a 10:1 rectangular prism under various grid-generated inflow conditions is investigated to understand the influence turbulent flow. A simultaneous vibration-pressure test measures responses and pressure characteristics at angles attack, while fractal theory evaluates regularity fluctuations. surface with without are compared analyze impact flow forms on vibration. results show that although mean coefficient follows same spatial distribution in uniform, spanwise uniform turbulent, non-uniform flows, it higher conditions. Uniform flows alter unilateral asymmetric fluctuation pattern into global suppress Additionally, turbulence enhances energy exchange between section airflow.

Язык: Английский

Процитировано

0