Computational modelling of flow around a circular cylinder in sub-critical flow regime with various turbulence models

Tutar, Mustafa; Holdo̸, A. E.

doi:10.1002/1097-0363(20010415)35:7<763::aid-fld112>3.0.co;2-s

Cited by 86 publications

(38 citation statements)

References 13 publications

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“…It can be seen from the table 2 that the calculated results of case A1 are quite different from that of the simulation [7][8] and experimental results [6] . Among them, the drag coefficient is 31.3% smaller than that of experimental results, while the Strouhal number (St) is 52% larger than that of experimental results.…”

Section: Resultsmentioning

confidence: 80%

Parameter analysis of numerical simulation on flow around a cylinder

You¹,

Yan²,

Zhong³

et al. 2017

Proceedings of the 2017 2nd International Conference on Civil, Transportation and Environmental Engineering (ICCTE 2017)

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Abstract. The parametric analysis is carried out by using numerical simulation methods for the flow around a single cylinder. The influence of the three-dimensional effect, grid form, time step, turbulence model and sub-grid scale models on the calculation results are discussed, respectively. The analysis results show that the numerical simulation of the flow around a single cylinder cannot ignore the influence of the three-dimensional effect. The grid form of the core region and the grid quality of the near-wall have a great influence on the calculation results When time step is less than 0.001 s, the calculated value of drag coefficient is more close to experimental results. The Smagorinsky-Lilly model of the large eddy simulation is appropriate for the analysis of flow around the cylinder.

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Section: Resultsmentioning

confidence: 80%

Parameter analysis of numerical simulation on flow around a cylinder

You¹,

Yan²,

Zhong³

et al. 2017

Proceedings of the 2017 2nd International Conference on Civil, Transportation and Environmental Engineering (ICCTE 2017)

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show abstract

“…This result is in keeping with the study of Franke et al (1989), who evaluated the details of the experiments of Cantwell and Coles (1983) and compared the results with numerical simulations applying the widely used standard k-ε turbulence model. A possible reason for Franke et al (1989) failing to obtain good predictions of flow field around the cylinder may be that the k-ε turbulence closure model adopted in their study is incapable of accurately predicting the turbulent flow field where the local anisotropy plays an important role (Tutar and Holdo, 2001).…”

Section: Discussion Of the Numerical Resultsmentioning

confidence: 99%

“…Two-equation turbulence closure models are the widely adopted methods in engineering applications and geophysical fluid dynamics studies because of their computational efficiency and acceptable accuracy. Bosch and Rodi (1998) and Tutar and Holdo (2001) performed numerical investigations on the influence of the turbulence closure methods of the flow around a square cylinder and a circular cylinder, respectively; however, all of them limited their studies to sub-critical flow regimes (Reynolds number around 10 5 ). In the present study, the drag coefficients of the flow on a circular cylinder are calculated at Reynolds number 10 6 (supercritical regime) using different advection schemes and turbulence models.…”

Section: Introductionmentioning

confidence: 99%

The influence of advection schemes and turbulence closure models on drag coefficient calculation around a circular cylinder at high Reynolds number

Lin

Zhao

Song

2011

J. Ocean Univ. China

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Different advection schemes and two-equation turbulence closure models based on eddy viscosity concept are used to compute the drag coefficient around a circular cylinder at high Reynolds number (10 6 ). The numerical results from these simulations are compared with each other and with experimental data in order to evaluate the performance of different combinations of advection scheme and two-equation turbulence model. The separate contributions from form drag and friction drag are also analyzed. The computational results show that the widely used standard k-ε turbulence closure is not suitable for such kind of study, while the other two-equation turbulence closure models produce acceptable results. The influence of the different advection schemes on the final results are small compared to that produced by the choice of turbulence closure method. The present study serves as a reference for the choice of advection schemes and turbulence closure models for more complex numerical simulation of the flow around a circular cylinder at high Reynolds number.

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“…Alternatively a semi-or quasi-implicit form of the scheme may be employed to obtain unsteady state solutions. Unsteady state RANS solutions are often referred to as URANS solutions [15][16][17][18][19][20].…”

Section: Solution Procedures For Turbulent Flow Equationsmentioning

confidence: 99%