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Experiments on a Flettner rotor at critical and supercritical Reynolds numbers. / Bordogna, G.; Muggiasca, S.; Giappino, S.; Belloli, M.; Keuning, J. A.; Huijsmans, R. H.M.; van ‘t Veer, A. P.

In: Journal of Wind Engineering and Industrial Aerodynamics, Vol. 188, 2019, p. 19-29.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Bordogna, G, Muggiasca, S, Giappino, S, Belloli, M, Keuning, JA, Huijsmans, RHM & van ‘t Veer, AP 2019, 'Experiments on a Flettner rotor at critical and supercritical Reynolds numbers' Journal of Wind Engineering and Industrial Aerodynamics, vol. 188, pp. 19-29. https://doi.org/10.1016/j.jweia.2019.02.006

APA

Vancouver

Bordogna G, Muggiasca S, Giappino S, Belloli M, Keuning JA, Huijsmans RHM et al. Experiments on a Flettner rotor at critical and supercritical Reynolds numbers. Journal of Wind Engineering and Industrial Aerodynamics. 2019;188:19-29. https://doi.org/10.1016/j.jweia.2019.02.006

Author

Bordogna, G. ; Muggiasca, S. ; Giappino, S. ; Belloli, M. ; Keuning, J. A. ; Huijsmans, R. H.M. ; van ‘t Veer, A. P. / Experiments on a Flettner rotor at critical and supercritical Reynolds numbers. In: Journal of Wind Engineering and Industrial Aerodynamics. 2019 ; Vol. 188. pp. 19-29.

BibTeX

@article{ae2003525d8b4551900b3d316cc5fd49,
title = "Experiments on a Flettner rotor at critical and supercritical Reynolds numbers",
abstract = "The Flettner rotor is attracting increasing attention as a viable technology for wind-assisted ship propulsion. Nonetheless, the influence of the Reynolds number on the aerodynamic performance of rotating cylinders is still unclear and under debate. The present study deals with a series of wind-tunnel experiments on a large-scale Flettner rotor in which the forces and pressures acting on the cylinder were measured for Reynolds numbers as large as Re=1.0⋅10 6 . The rotating cylinder used in the experimental campaign had a diameter of 1.0 m and span of 3.73 m. The results indicate that the lift coefficient is only affected by the Reynolds number in the critical flow region and below velocity ratio k=2.5. Conversely, in the velocity ratio range 1<k≤2.5, the drag coefficient is markedly influenced by the Reynolds number over the entire range of flow conditions analyzed. The power coefficient scales with the cube of the tangential velocity and it appears to be insensitive to the Reynolds number or whether the cylinder is spun in an air stream or in still air.",
keywords = "Magnus effect, Pressure measurements, Rotating cylinder, Rotor sail, Wind assisted ship propulsion, Wind tunnel tests",
author = "G. Bordogna and S. Muggiasca and S. Giappino and M. Belloli and Keuning, {J. A.} and Huijsmans, {R. H.M.} and {van ‘t Veer}, {A. P.}",
year = "2019",
doi = "10.1016/j.jweia.2019.02.006",
language = "English",
volume = "188",
pages = "19--29",
journal = "Journal of Wind Engineering & Industrial Aerodynamics",
issn = "0167-6105",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Experiments on a Flettner rotor at critical and supercritical Reynolds numbers

AU - Bordogna, G.

AU - Muggiasca, S.

AU - Giappino, S.

AU - Belloli, M.

AU - Keuning, J. A.

AU - Huijsmans, R. H.M.

AU - van ‘t Veer, A. P.

PY - 2019

Y1 - 2019

N2 - The Flettner rotor is attracting increasing attention as a viable technology for wind-assisted ship propulsion. Nonetheless, the influence of the Reynolds number on the aerodynamic performance of rotating cylinders is still unclear and under debate. The present study deals with a series of wind-tunnel experiments on a large-scale Flettner rotor in which the forces and pressures acting on the cylinder were measured for Reynolds numbers as large as Re=1.0⋅10 6 . The rotating cylinder used in the experimental campaign had a diameter of 1.0 m and span of 3.73 m. The results indicate that the lift coefficient is only affected by the Reynolds number in the critical flow region and below velocity ratio k=2.5. Conversely, in the velocity ratio range 1<k≤2.5, the drag coefficient is markedly influenced by the Reynolds number over the entire range of flow conditions analyzed. The power coefficient scales with the cube of the tangential velocity and it appears to be insensitive to the Reynolds number or whether the cylinder is spun in an air stream or in still air.

AB - The Flettner rotor is attracting increasing attention as a viable technology for wind-assisted ship propulsion. Nonetheless, the influence of the Reynolds number on the aerodynamic performance of rotating cylinders is still unclear and under debate. The present study deals with a series of wind-tunnel experiments on a large-scale Flettner rotor in which the forces and pressures acting on the cylinder were measured for Reynolds numbers as large as Re=1.0⋅10 6 . The rotating cylinder used in the experimental campaign had a diameter of 1.0 m and span of 3.73 m. The results indicate that the lift coefficient is only affected by the Reynolds number in the critical flow region and below velocity ratio k=2.5. Conversely, in the velocity ratio range 1<k≤2.5, the drag coefficient is markedly influenced by the Reynolds number over the entire range of flow conditions analyzed. The power coefficient scales with the cube of the tangential velocity and it appears to be insensitive to the Reynolds number or whether the cylinder is spun in an air stream or in still air.

KW - Magnus effect

KW - Pressure measurements

KW - Rotating cylinder

KW - Rotor sail

KW - Wind assisted ship propulsion

KW - Wind tunnel tests

UR - http://www.scopus.com/inward/record.url?scp=85062232470&partnerID=8YFLogxK

U2 - 10.1016/j.jweia.2019.02.006

DO - 10.1016/j.jweia.2019.02.006

M3 - Article

VL - 188

SP - 19

EP - 29

JO - Journal of Wind Engineering & Industrial Aerodynamics

T2 - Journal of Wind Engineering & Industrial Aerodynamics

JF - Journal of Wind Engineering & Industrial Aerodynamics

SN - 0167-6105

ER -

ID: 52145965