Numerical investigation of fluid flow past circular cylinder with multiple control rods at low Reynolds number

Lü, Lin; Liu, Mingming; Teng, Bin; Cui, Zhendong; Tang, Guoqiang; Zhao, Ming; Cheng, Liang

doi:10.1016/j.jfluidstructs.2014.03.006

Cited by 70 publications

(26 citation statements)

References 58 publications

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“…For cylindrical risers in offshore oil and gas engineering, they are generally attached by several auxiliary smaller lines such as water and chemical supply pipes, kill and choke lines, hydraulic control lines, blowout preventer lines and electric cables [34]. These lines can be referred to as small control rods, which may suppress VIV if their arrangement is optimized.…”

Section: Introductionmentioning

confidence: 99%

Numerical evaluation of passive control of VIV by small control rods

Zhu

Yao

2015

Applied Ocean Research

111

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Section: Introductionmentioning

confidence: 99%

Numerical evaluation of passive control of VIV by small control rods

Zhu

Yao

2015

Applied Ocean Research

111

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“…Present results CFD(Rajani [44]) CFD (Lu [46]) CFD (He [47]) CFD(Henderson [48]) CFD(Persillon [49]) Exp (Williamson [50]) Exp (Roshko surface treatment. When using VOF/WLIC, the improvement of the amplitude, the phase difference can be noticed.…”

Section: Rementioning

confidence: 76%

Numerical modeling of wave interactions with coastal structures by a constrained interpolation profile/immersed boundary method

Zhao

Gao

Cao

et al. 2015

Numerical Methods in Fluids

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SUMMARYA high-order difference method based multiphase model is proposed to simulate nonlinear interactions between water wave and submerged coastal structures. The model is based on the Navier-Stokes equations using a constrained interpolation profile (CIP) method for the flow solver, and employs an immersed boundary method (IBM) for the treatment of wave-structure interactions. A more accurate interface capturing scheme, the volume of fluid/weighed line interface calculation (VOF/WLIC) scheme, is adopted as the interface capturing method. A series of computations are performed to verify the application of the model for simulations of fluid interaction with various structures. These problems include flow over a fixed cylinder, water entry of a circular cylinder and solitary waves passing various submerged coastal structures. Computations are compared with the available analytical, experimental and other numerical results and good agreement is obtained. The results of this study demonstrate the accuracy and applications of the proposed model to simulate the nonlinear flow phenomena and capture the complex free surface flow.

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“…They reported maximum drag reduction at g = 3 and also reported the effect of thrust. Lu et al [11] examined the effect of multiple control rods, g, and Re on the flow modes and on fluid dynamic forces of a circular rod through the finite element method. Vamsee et al [12] performed numerical simulations to investigate the effect of a single upstream control plate and two control plates in the upstream and downstream position of a single square rod.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Drag Reduction on a Square Rod Detached with Two Control Rods at Various Gap Spacing via Lattice Boltzmann Method

et al. 2020

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Numerical simulations are performed to examine the effect of size of control rods (d1) and spacing ratio (g) on flow around a square rod with upstream and downstream control rods aligned in-line using the lattice Boltzmann method (LBM). The Reynolds number (Re) is fixed at Re = 160, while the spacing between the main rod and control rods is taken in the range 1 ≤ g ≤ 5 and the size of the control rod is varied between 4 and 20. Seven different types of flow mods are observed in this study at different values of g and d1. Variation in force statistics, like mean drag coefficient (Cdmean), Strouhal number (St), root mean square values of drag (Cdrms) and lift coefficients (Clrms), and percentage reduction in mean drag coefficient is discussed in detail. It was examined that vortex shedding completely suppressed at (g, d1) = (1, 12), (2, 12), and (2, 16) where steady flow mode exists. Moreover, it was found that at large gap spacing, where g = 5, the effect of control rods on the main rod vanishes. Due to this strong vortex shedding produced and as a result, maximum value of Cdmean is found at (g, d1) = (5, 8). The negative values of mean drag force are also observed at some gap spacing and size of control rods are due to the effect of thrust. Furthermore, the maximum percentage reduction in Cdmean is 121%, found at (g, d1) = (2, 20).

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Numerical investigation of fluid flow past circular cylinder with multiple control rods at low Reynolds number

Cited by 70 publications

References 58 publications

Numerical evaluation of passive control of VIV by small control rods

Numerical evaluation of passive control of VIV by small control rods

Numerical modeling of wave interactions with coastal structures by a constrained interpolation profile/immersed boundary method

Numerical Simulation of Drag Reduction on a Square Rod Detached with Two Control Rods at Various Gap Spacing via Lattice Boltzmann Method

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