On the evaluation of bridge deck flutter derivatives using RANS turbulence models

Brusiani, Federico; Miranda, Stefano de; Patruno, L.; Ubertini, Francesco; Vaona, P.

doi:10.1016/j.jweia.2013.05.002

Cited by 53 publications

(28 citation statements)

References 11 publications

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“…Thanks to the increasing power of modern computers, Computational Fluid Dynamics (CFD) techniques are becoming an increasingly attractive tool for studying the aerodynamic behavior of bridge decks [4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Accuracy of numerically evaluated flutter derivatives of bridge deck sections using RANS: Effects on the flutter onset velocity

Patruno

2015

Engineering Structures

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Section: Introductionmentioning

confidence: 99%

Accuracy of numerically evaluated flutter derivatives of bridge deck sections using RANS: Effects on the flutter onset velocity

Patruno

2015

Engineering Structures

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“…A 2D URANS approach has 163 been preferred which, according to Brusiani et al (2013), is equivalent to imposing the perfect 164 correlation of the flow structures in the span-wise direction.…”

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confidence: 99%

Bridge deck flutter derivatives: Efficient numerical evaluation exploiting their interdependence

Nieto

Owen

Hargreaves

et al. 2015

Journal of Wind Engineering and Industrial Aerodynamics

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Highlights: An efficient CFD approach for the computation of flutter derivatives is presented.  Relationships between flutter derivatives allow halving the number of simulations.  Successfully applied at a ratio 4.9:1 rectangular cylinder and the G1 box section.  Great potential in industrial applications and shape optimal design problems. Highlights (for review) 16It has been found that the proposed methodology offers results which agree well with the 17 experimental data and the accuracy of the estimated flutter derivatives is similar to the results 18reported in the literature where the complete set of numerical simulations has been performed for 19both heave and pitch degrees of freedom.20 21

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“…Similar analyses for slightly different bridge deck geometries can be found, for instance, in [58][59][60][61]. The simulations were performed for the configuration with both sharp (R/B = 0) and rounded edges (R/B = 0.05), and the only experimental results available were those for the CRIACIV section [55,62], which, as previously mentioned, presents lower edges with a certain degree of roundness.…”

Section: Flutter Derivativesmentioning

confidence: 84%

Applicability of URANS and DES Simulations of Flow Past Rectangular Cylinders and Bridge Sections

Mannini

2015

Computation

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This paper discusses the results of computational fluid dynamics simulations carried out for rectangular cylinders with various side ratios of interest for many civil engineering structures. A bridge deck of common cross-section geometry was also considered. Unsteady Reynolds-averaged Navier-Stokes (URANS) equations were solved in conjunction with either an eddy viscosity or a linearized explicit algebraic Reynolds stress model. The analysis showed that for the case studies considered, the 2D URANS approach was able to give reasonable results if coupled with an advanced turbulence model and a suitable computational mesh. The simulations even reproduced, at least qualitatively, complex phenomena observed in the wind tunnel, such as Reynolds number effects for a sharp-edged geometry. The study focused both on stationary and harmonically oscillating bodies. For the latter, self-excited forces and flutter derivatives were calculated and compared to experimental data. In the particular case of a benchmark rectangular 5:1 cylinder, 3D detached eddy simulations were also carried out, highlighting the improvement in the accuracy of the results with respect to both 2D and 3D URANS calculations. All of the computations were performed with the Tau code, a non-commercial unstructured solver developed by the German Aerospace Center.

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On the evaluation of bridge deck flutter derivatives using RANS turbulence models

Cited by 53 publications

References 11 publications

Accuracy of numerically evaluated flutter derivatives of bridge deck sections using RANS: Effects on the flutter onset velocity

Accuracy of numerically evaluated flutter derivatives of bridge deck sections using RANS: Effects on the flutter onset velocity

Bridge deck flutter derivatives: Efficient numerical evaluation exploiting their interdependence

Applicability of URANS and DES Simulations of Flow Past Rectangular Cylinders and Bridge Sections

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