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http://dx.doi.org/10.12989/was.2022.34.1.029

Experimental analysis of the aerodynamic characteristics of a rectangular 5:1 cylinder using POD  

Cardenas-Rondon, Juan A. (Instituto Universitario "Ignacio Da Riva" (IDR/UPM), Universidad Politecnica de Madrid)
Ogueta-Gutierrez, Mikel (Instituto Universitario "Ignacio Da Riva" (IDR/UPM), Universidad Politecnica de Madrid)
Franchini, Sebastian (Instituto Universitario "Ignacio Da Riva" (IDR/UPM), Universidad Politecnica de Madrid)
Gomez-Ortega, Omar (Instituto Universitario "Ignacio Da Riva" (IDR/UPM), Universidad Politecnica de Madrid)
Publication Information
Wind and Structures / v.34, no.1, 2022 , pp. 29-42 More about this Journal
Abstract
Following the BARC initiative, wind tunnel measurements have been performed on a 5:1 rectangular cylinder. Pressure distribution has been measured in several sections, checking the two-dimensionality of the flow around the model. Mean values compare well with previous data. These measurements have been processed using the standard Proper Orthogonal Decomposition (POD) and the snapshot POD to obtain phase-resolved cycles. This decomposition has been used to analyze the characteristics of the flow around the cylinder, in particular, the behavior of the recirculation bubble in the upper/lower surfaces. The effect of the angle of attack, the turbulence intensity and the Reynolds number has been studied. First and second modes extracted from POD have been found to be related to the reattachment of the flow in the upper surface. Increasing the angle of attack is related to a delay in the reattachment position, while an increase in turbulence intensity makes the reattachment point to move towards the windward face.
Keywords
BARC; POD; wind tunnel;
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1 Nguyen, D.T., Hargreaves, D.M. and Owen, J.S. (2018), "Vortexinduced vibration of a 5:1 rectangular cylinder: a comparison of wind tunnel sectional model tests and computational simulations", J. Wind Eng. Ind. Aerod., 175(January), 1-16. https://doi.org/10.1016/j.jweia.2018.01.029.   DOI
2 Berkooz, G., Holmes, P. and Lumley, J.L. (1993), "The proper orthogonal decomposition in the analysis of turbulent flows", Annual Rev. Fluid Mech., 25(1971), 539-575. https://doi.org/10.1146/annurev.fl.25.010193.002543.   DOI
3 Bartoli, G., Bruno. L., Buresti, G., Ricciardelli, F., Salvetti, M.V. and Zasso, A. (2020a), "A benchmark on the aerodynamics of a rectangular 5:1 cylinder. Overview document", https://www.aniv-iawe.org/barc.
4 Bartoli, G., Bruno. L., Buresti, G., Ricciardelli, F., Salvetti, M.V. and Zasso, A. (2020a), "A benchmark on the aerodynamics of a rectangular 5:1 cylinder. Requests for wind tunnel tests", https://www.aniv-iawe.org/barc.
5 Bruno, L., Salvetti, M.V. and Ricciardelli, F. (2014), "Benchmark on the aerodynamics of a rectangular 5:1 cylinder: an overview after the first four years of activity", J. Wind Eng. Ind. Aerod., 126(2014), 87-106. https://doi.org/10.1016/j.jweia.2014.01.005.   DOI
6 Holmes, J.D. (1990), "Analysis and synthesis of pressure fluctuations on bluff bodies using eigenvectors", J. Wind Eng. Ind. Aerod., 33(1-2), 219-230. https://doi.org/10.1016/0167-6105(90)90037-D.   DOI
7 Lumley, J.L. (1967), "The structure of inhomogeneous turbulence" Atmos. Turbulence Wave Propagation, eds. 166-178.
8 Kareem, A. and Cermak, J.E. (1984), "Pressure fluctuations on a square building model in boundary-layer flows", J. Wind Eng. Ind. Aerod., 16(1), 17-41. https://doi.org/10.1016/0167-6105(84)90047-3.   DOI
9 Liang, Y.C., Lee, H.P., Lim, S.P., Lin, W.Z., Lee, K.H. and Wu, C. G. (2002b), "Proper orthogonal decomposition and its applications - Part I: Theory", J. Sound Vib., 252(3), 527-544. https://doi.org/10.1006/jsvi.2001.4041.   DOI
10 Liang, Y.C., Lin, W.Z., Lee, H.P., Lim, S.P., Lee, K.H. and Sun, H. (2002a), "Proper orthogonal decomposition and its applications-Part II: Model reduction for MEMS dynamical analysis", J. Sound Vib., 256(3), 515-532. https://doi.org/10.1006/jsvi.2002.5007.   DOI
11 Ma, K., Hu, C. and Zhou, Z. (2019), "Investigation on vortexinduced vibration of twin rectangular 5:1 cylinders through wind tunnel tests and POD analysis", J. Wind Eng. Ind. Aerod., 187(February), 97-107. https://doi.org/10.1016/j.jweia.2019.02.014.   DOI
12 Flores, R. (2011), The Use of the Proper Orthogonal Decomposition for the Characterization of the Dynamic Response of Structures Due to Wind Loading, Ph.D. Dissertation, University of Ottawa, Ottawa
13 Schewe, G. (2013), "Reynolds-number-effects in flow around a rectangular cylinder with aspect ratio 1:5", J. Fluids Struct., 39, 15-26. https://doi.org/10.1016/j.jfluidstructs.2013.02.013.   DOI
14 Mannini, C., Marra, A.M., Pigolotti L. and Bartoli, G. (2017), "The effects of free-stream turbulence and angle of attack on the aerodynamics of a cylinder with rectangular 5:1 cross section", J. Wind Eng. Ind. Aerod., 161(December 2016), 42-58. https://doi.org/10.1016/j.jweia.2016.12.001.   DOI
15 Ricciardelli, F. (2010), "Effects of the vibration regime on the spanwise correlation of the aerodynamic forces on a 5:1 rectangular cylinder", J. Wind Eng. Ind. Aerod., 98(4-5), 215-225. https://doi.org/10.1016/j.jweia.2009.10.017.   DOI
16 Saathoff, P.J. and Melbourne, W.H. (1987), "Freestream turbulence and wind tunnel blockage effects on streamwise surface pressures", J. Wind Eng. Ind. Aerod., 26(3), 353-370. https://doi.org/10.1016/0167-6105(87)90005-5.   DOI
17 Wu, B., Li, S., Zhang, L. and Li, K. (2021), "Experimental determination of the two-dimensional aerodynamic admittances of a 5:1 rectangular cylinder in streamwise sinusoidal flows", J. Wind Eng. Ind. Aerod., 210, 104525. https://doi.org/10.1016/j.jweia.2021.104525.   DOI
18 Schmidt, O.T. and Colonius, T. (2020), "Guide to spectral proper orthogonal decomposition", AIAA J., 58(3), 1023-1033. https://doi.org/10.2514/1.J058809.   DOI
19 Solari, G., Carassale, L. and Tubino, F. (2007), "Proper orthogonal decomposition in wind engineering. Part 1: A state-of-the-art and some prospects", Wind Struct., 10(2), 153-176. http://dx.doi.org/10.12989/was.2007.10.2.153.   DOI
20 van Oudheusden, B.W., Scarano, F., van Hinsberg, N.P. and Watt, D.W. (2005), "Phase-resolved characterization of vortex shedding in the near wake of a square-section cylinder at incidence", Experim. Fluids, 39(1), 86-98. https://doi.org/10.1007/s00348-005-0985-5.   DOI