Numerical Simulation on Flow Past Two Side-by-Side Inclined Circular Cylinders at Low Reynolds Number

Liu, Cai; Gao, Yangyang; Qu, Xinchen; Wang, Bin; Zhang, Baofeng

doi:10.1007/s13344-019-0033-5

Cited by 8 publications

(2 citation statements)

References 28 publications

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“…Within this regime, the Reynolds number Re may also influence the transition between single and twin vortex streets [7,8]. In their 3D numerical study, Liu et al [9] also showed the influence of cylinder inclination (or conversely, flow angle) on formation of these vortex streets. (iii) When T/D > 2.2, the gap is sufficiently large that both cylinders behaves more as isolated bluff bodies resulting in predominantly symmetric (or anti-phase) parallel wake patterns that are coupled with a single Strouhal number St of approximately 0.21 [6].…”

Section: Introductionmentioning

confidence: 99%

Vibration Performance of a Flow Energy Converter behind Two Side-By-Side Cylinders

Rasani

Moria

Beer

et al. 2019

JMSE

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Flow-induced vibrations of a flexible cantilever plate, placed in various positions behind two side-by-side cylinders, were computationally investigated to determine optimal location for wake-excited energy harvesters. In the present study, the cylinders of equal diameter D were fixed at center-to-center gap ratio of T / D = 1 . 7 and immersed in sub-critical flow of Reynold number R e D = 10 , 000 . A three-dimensional Navier–Stokes flow solver in an Arbitrary Lagrangian–Eulerian (ALE) description was closely coupled to a non-linear finite element structural solver that was used to model the dynamics of a composite piezoelectric plate. The cantilever plate was fixed at several positions between 0 . 5 < x / D < 1 . 5 and - 0 . 85 < y / D < 0 . 85 measured from the center gap between cylinders, and their flow-induced oscillations were compiled and analyzed. The results indicate that flexible plates located at the centerline between the cylinder pairs experience the lowest mean amplitude of oscillation. Maximum overall amplitude in oscillation is predicted when flexible plates are located in the intermediate off-center region downstream of both cylinders. Present findings indicate potential to further maximize wake-induced energy harvesting plates by exploiting their favorable positioning in the wake region behind two side-by-side cylinders.

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Section: Introductionmentioning

confidence: 99%

Vibration Performance of a Flow Energy Converter behind Two Side-By-Side Cylinders

Rasani

Moria

Beer

et al. 2019

JMSE

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“…Attachment on the surface of the cylinder also affects the flow around it [11,12]. In the case of multiple cylinders, the flow of one cylinder may cause an excitation of the other cylinder, causing disturbances to the flow between each other [13][14][15][16][17][18]. These investigations have shown the fact that attachments or proximity to other bodies can affect the development of the wake.…”

Section: Introductionmentioning

confidence: 99%

The Transient Flow behind an Instantaneously Started Circular Cylinder with Two Symmetrical Strips

Zhou¹,

Jin²,

Ye³

et al. 2020

Applied Sciences

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The finite volume method, based on the dynamic mesh method, is used to investigate the transient viscous incompressible flow around an impulsively and translationally started cylinder with strips. The strips of different shapes are installed at different locations on the surface of the cylinder. The main purpose of this paper is to investigate the influence of the locations and shapes of strips on the flow caused by boundary motion. The present solutions agree well with the experimental results reported in literature. Six placement angles of strips were selected: 0°, 20°, 60°, 90°, 120° and 150°. The development of wake shows some new phenomena with different strip locations, and the significant difference appears at α = 90°. The vortex intensity is much larger than that of other locations. On the other hand, four shapes of strips were selected: arc, triangle, rectangle and trapezoid. The rectangular strips had the greatest influence on the drag coefficient and the maximum of the drag coefficient increased from 0.4 to 2.8, compared with the smooth cylinder. The maximum of negative velocity had the most significant change when the shape of strip is arc, increasing by 34% compared with the smooth cylinder, at T = 3.

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The influence of collar parameters on local scour mechanism around the circular pier at the bend

Moghanloo,

Vaghefi,

Ghodsian

et al. 2024

Appl Water Sci

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Numerical Simulation on Flow Past Two Side-by-Side Inclined Circular Cylinders at Low Reynolds Number

Cited by 8 publications

References 28 publications

Vibration Performance of a Flow Energy Converter behind Two Side-By-Side Cylinders

Vibration Performance of a Flow Energy Converter behind Two Side-By-Side Cylinders

The Transient Flow behind an Instantaneously Started Circular Cylinder with Two Symmetrical Strips

The influence of collar parameters on local scour mechanism around the circular pier at the bend

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