Flow-induced vibration and heat transfer characteristics of three elliptical cylinders arranged in an isosceles triangle DOI
Zhiqiang Li, X. Wang,

Zhiguo Wei

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(11)

Published: Nov. 1, 2024

This study investigates the flow-induced vibration (FIV) and heat transfer behavior of three heated cylinders arranged in an isosceles triangle configuration at a Reynolds number 100. A dynamic model for FIV two-dimensional, elastically supported was developed using computational fluid dynamics simulations overset mesh technology. The effects aspect ratio (AR) angle attack (α) were examined by varying α from 30° to 90° AR 0.75 2.0, with = 1.0 corresponding circular cross section. To FIV, two-degree-of-freedom motion analyzed across range reduced velocities (Ur 2–12). results indicate that as increases, impact upstream cylinder's wake on downstream gradually weakens, resulting lower amplitudes higher rates cylinders. Notably, when reaches 90°, streamwise amplitude becomes almost negligible. At 45°, average Nusselt cylinder is generally than cylinder. However, 60°, noticeably As lock-in region shifts being concentrated Ur 6 8 4 6, indicating increase raises vortex shedding frequency.

Language: Английский

Vortex-induced vibration and wake interference of two-degree-of-freedom elastically mounted elliptical cylinders in tandem at various spacing DOI
Mehdi Badri Ghomizad,

Hosnieh Kor,

Minh Doan

et al.

Ocean Engineering, Journal Year: 2024, Volume and Issue: 310, P. 118637 - 118637

Published: July 8, 2024

Language: Английский

Citations

6
Enhancing energy harvesting capability through analysis of flow-induced vibrations in double sprung circular cylinders exposed to turbulent flow: Influence of incidence angle DOI
Amir Hossein Rabiee,

Abbas Naderi,

Mostafa Esmaeili

et al.

Ocean Engineering, Journal Year: 2024, Volume and Issue: 309, P. 118598 - 118598

Published: June 28, 2024

Language: Английский

Citations

3
Numerical investigation of the vortex-induced response characteristics of a circular cylinder rotating on an eccentric shaft DOI
Hengxu Liu,

Juntao Zhang,

Yeqing Jin

et al.

Ocean Engineering, Journal Year: 2025, Volume and Issue: 331, P. 121309 - 121309

Published: April 24, 2025

Language: Английский

Citations

0
Experimental investigation of flow characteristics around triangular cylinders in various angular orientations in a tandem configuration DOI
Renata Gnatowska, Agnieszka Kocoń, Karolina Gajewska

et al.

Ocean Engineering, Journal Year: 2025, Volume and Issue: 331, P. 121356 - 121356

Published: May 1, 2025

Language: Английский

Citations

0
Alignment impact of three unequal-sized square cylinders on the wake flow pattern and fluid forces DOI
Salwa Fezai, Fakher Oueslati

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(12)

Published: Dec. 1, 2024

A finite volume method and a full multi-grid technique are implemented to analyze the influence of alignment type three unequal-sized square cylinders on characteristics wake flow pattern fluid forces flow. Three-square with different dimensions C1, C2, C3 arranged for main combinations, namely, in-line arrangement, side-by-side staggered arrangement. Analysis patterns in regimes is performed arrangement Reynolds number (Re) varied range (1, 200). The second parameter type. including vortex shedding evolution vortices, force coefficients predicted analyzed arrangements terms streamlines, iso-vortices, drag (CD) lift (CL) coefficient evolutions steady unsteady regimes. Of great interest analysis combined effect adopted bifurcation emergence phenomenon CL CD profiles while predicting critical each configuration. numerical outcomes demonstrate that Re values three-square have prominent characteristics. study reveals regime appears at (Rec = 63), 76), finally specific value 146). Furthermore, time averaged explored discussed. It found causes strong reduction values, highest obtained combination.

Language: Английский

Citations

1
Flow-induced vibration and heat transfer characteristics of three elliptical cylinders arranged in an isosceles triangle DOI
Zhiqiang Li, X. Wang,

Zhiguo Wei

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(11)

Published: Nov. 1, 2024

This study investigates the flow-induced vibration (FIV) and heat transfer behavior of three heated cylinders arranged in an isosceles triangle configuration at a Reynolds number 100. A dynamic model for FIV two-dimensional, elastically supported was developed using computational fluid dynamics simulations overset mesh technology. The effects aspect ratio (AR) angle attack (α) were examined by varying α from 30° to 90° AR 0.75 2.0, with = 1.0 corresponding circular cross section. To FIV, two-degree-of-freedom motion analyzed across range reduced velocities (Ur 2–12). results indicate that as increases, impact upstream cylinder's wake on downstream gradually weakens, resulting lower amplitudes higher rates cylinders. Notably, when reaches 90°, streamwise amplitude becomes almost negligible. At 45°, average Nusselt cylinder is generally than cylinder. However, 60°, noticeably As lock-in region shifts being concentrated Ur 6 8 4 6, indicating increase raises vortex shedding frequency.

Language: Английский

Citations

0