Estimation of hydrodynamic coefficients for flow around cylinders in side-by-side arrangement with variation in separation gap

Ryu, Sam; Lee, Sang-Beom; Lee, Byung-Hyuk; Park, Jong-Chun

doi:10.1016/j.oceaneng.2009.03.001

Cited by 15 publications

(6 citation statements)

References 12 publications

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“…A cursory inspection of the available literature (Zdravkovich, 1977(Zdravkovich, , 1987(Zdravkovich, , 1997(Zdravkovich, , 2003Kang, 2003;Liang et al, 2009;Ryu et al, 2009;Tsutsui, 2010;Shyam et al, 2013) reveals that the bulk of the information relates to high Reynolds numbers like those encountered in air/gas, air/liquid heat exchangers. On the other hand, owing to the generally high viscosity levels of the multiphase (foams, suspensions, and emulsions) and polymeric systems, the representative Reynolds numbers in polymer, food and slurry related applications seldom exceed 20-30.…”

Section: Previous Workmentioning

confidence: 99%

Two-dimensional Flow of Power-law Fluids over a Pair of Cylinders in a Side-by-Side Arrangement in the Laminar Regime

Panda

2017

Braz. J. Chem. Eng.

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-This manuscript presents the effect of Reynolds number (Re) and proximity of the bodies on the hydrodynamics of flow of shear-thinning, Newtonian and shear-thickening fluids over a pair of cylinders kept in side-by-side arrangement. Results obtained from the numerical simulations carried out with a combination of different parameters in the range of 0.2 ≤ power law index (n) ≤ 1.8, 0.1 ≤ Re ≤ 100 and 1.2 ≤ G (gap between the cylinders/diameter) ≤ 4 have been discussed in details. Analysis of the results gives a clear insight into the complex influence of Re on streamline patterns, surface pressure profiles, drag and lift coefficients for various fluids when the gap between two cylinder is changed.

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Section: Previous Workmentioning

confidence: 99%

Two-dimensional Flow of Power-law Fluids over a Pair of Cylinders in a Side-by-Side Arrangement in the Laminar Regime

Panda

2017

Braz. J. Chem. Eng.

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“…Liang et al [12] used spectral difference method to develop a two-dimensional solver and predicted four wake patterns after investigating nine different spacings between 1.1 and 4.0 at a fixed Reynolds number of 100. Ryu et al [13] carried out investigations by applying a finite-volume method using a multi-block grid technique for Re = 100 at various non-dimensional gap spacings between 0.1 and 15. They reported five vortex interaction categories and found that the changes of hydrodynamic coefficients due to variations in separation are well characterized by the five different vortex flow patterns.…”

Section: Introductionmentioning

confidence: 99%

Non-Newtonian power-law flow and heat transfer across a pair of side-by-side circular cylinders

Chaitanya

Dhiman²

2012

International Journal of Heat and Mass Transfer

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“…Numerical investigation of the characteristics of twodimensional heat transfer in a steady laminar flow around two rotating circular cylinders in a side-by-side arrangement and validation for the large gap-spacing between cylinder surfaces is found in literature. 4 In this respect, wake interaction between two circular cylinders in tandem and side-by-side arrangements was studied experimentally by some researchers such as Zhang and Melbourne, 5 Liu et al, 6 and Ryu et al 7 At low Reynolds numbers, Liu et al 6 employed also the unstructured spectral element method to investigate the flow pattern of two side-by-side cylinders for different spacings.…”

Section: Introductionmentioning

confidence: 99%

Numerical study on phase change of water flowing across two heated rotating circular cylinders in tandem arrangement

Dhar

Mahapatra

Maharana³

et al. 2016

The Journal of Computational Multiphase Flows

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The problems of fluid flow and heat transfer phenomena over an array of cylinders are quite prominent in fluid dynamics and industry applications. The current work focuses on fluid flow and heat transfer analysis over two heated rotating cylinders arranged in tandem. The flow of water over heated cylinders faces a phenomenon of phase change from liquid (water) to vapor phase (steam). The mechanism of this phase change is studied through a numerical simulation supplemented with verification of the code and validation. The problem is simulated when flows from two cylinders in a tandem arrangement become interacting and non-interacting. The Eulerian model is used during simulation to comprehend the multiphase phenomena. The volume fractions of both the phases such as water and vapor and heat transfer coefficients of both the cylinders have been computed and presented as findings of the problem. The mass and heat transfer mechanism is unidirectional from one phase to the other phase. The vapor fraction of each phase is to be observed and compared when three different rotations are given to the two cylinders immersed in a turbulent flow of water.

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Estimation of hydrodynamic coefficients for flow around cylinders in side-by-side arrangement with variation in separation gap

Cited by 15 publications

References 12 publications

Two-dimensional Flow of Power-law Fluids over a Pair of Cylinders in a Side-by-Side Arrangement in the Laminar Regime

Two-dimensional Flow of Power-law Fluids over a Pair of Cylinders in a Side-by-Side Arrangement in the Laminar Regime

Non-Newtonian power-law flow and heat transfer across a pair of side-by-side circular cylinders

Numerical study on phase change of water flowing across two heated rotating circular cylinders in tandem arrangement

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