Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Thomas Leweke"'
Publikováno v:
Flow, Vol 3 (2023)
Helical vortex systems, such as those found in the wakes of wind turbines, helicopter rotors and propellers, are subject to instabilities that lead to pairing between adjacent vortex loops. Certain modes of these instabilities can be triggered by an
Externí odkaz:
https://doaj.org/article/270ea0467aa54ebfb97857d6500d0088
Autor:
Aliza Abraham, Thomas Leweke
Publikováno v:
Experiments in Fluids. 64
Wakes behind rotors such as wind turbines, propellers, and helicopters can have detrimental effects on downstream structures including increased structural loading. These wakes are characterized by helical vortices shed from the blade tips, which are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0652afacb81a0f4058d5392767961c3
https://doi.org/10.1007/s00348-023-03646-3
https://doi.org/10.1007/s00348-023-03646-3
Publikováno v:
AIAA SCITECH 2023 Forum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bd900a767d2fa35e7e554bda96e85d8
https://doi.org/10.2514/6.2023-2482
https://doi.org/10.2514/6.2023-2482
Publikováno v:
CEAS Aeronautical Journal
CEAS Aeronautical Journal, 2022, 13, pp.97-112. ⟨10.1007/s13272-021-00555-1⟩
CEAS Aeronautical Journal, Springer, 2021, ⟨10.1007/s13272-021-00555-1⟩
CEAS Aeronautical Journal 13, 97-112 (2022). doi:10.1007/s13272-021-00555-1
CEAS Aeronautical Journal, 2022, 13, pp.97-112. ⟨10.1007/s13272-021-00555-1⟩
CEAS Aeronautical Journal, Springer, 2021, ⟨10.1007/s13272-021-00555-1⟩
CEAS Aeronautical Journal 13, 97-112 (2022). doi:10.1007/s13272-021-00555-1
CEAS Aeronautical Journal 13, 97-112 (2022). doi:10.1007/s13272-021-00555-1
Published by Springer, Wien [u.a.]
Published by Springer, Wien [u.a.]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce477c116280d0654ac2bb7c2de9c33d
https://doi.org/10.1007/s13272-021-00555-1
https://doi.org/10.1007/s13272-021-00555-1
Publikováno v:
75th Annual Meeting of the APS Division of Fluid Dynamics - Gallery of Fluid Motion.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d13b039cc67962bd59fc0b3dbad9f44
https://doi.org/10.1103/aps.dfd.2022.gfm.p0020
https://doi.org/10.1103/aps.dfd.2022.gfm.p0020
Publikováno v:
Computers & Fluids. 255:105790
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8266eb72ef7a213b4bc3d5c30b93c79b
https://doi.org/10.1016/j.compfluid.2023.105790
https://doi.org/10.1016/j.compfluid.2023.105790
Publikováno v:
Aerospace Science and Technology
Aerospace Science and Technology, 2022, 130, pp.107860. ⟨10.1016/j.ast.2022.107860⟩
Aerospace Science and Technology, 2022, 130, pp.107860. ⟨10.1016/j.ast.2022.107860⟩
International audience; We present results from a combined experimental and numerical investigation of the flow around a rectangular NACA 0012 wing, whose tip geometry is modified by the addition of a perpendicular fin. The purpose of this modificati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3d9e6a84ae0d1bbf829929d933d924c
https://hal.science/hal-03871519/document
https://hal.science/hal-03871519/document
Autor:
Thomas Leweke, A.S. Eldemerdash
Publikováno v:
Journal of Fluids and Structures
Journal of Fluids and Structures, Elsevier, 2021, 103, pp.103259. ⟨10.1016/j.jfluidstructs.2021.103259⟩
Journal of Fluids and Structures, 2021, 103, pp.103259. ⟨10.1016/j.jfluidstructs.2021.103259⟩
Journal of Fluids and Structures, Elsevier, 2021, 103, pp.103259. ⟨10.1016/j.jfluidstructs.2021.103259⟩
Journal of Fluids and Structures, 2021, 103, pp.103259. ⟨10.1016/j.jfluidstructs.2021.103259⟩
In this study, a moderately flexible rotor is investigated experimentally in a water channel. The rotor consists of a single blade with a simplified rectangular geometry and is tested with various pitch angles at different rotational speeds. The flap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::064d1dd847a89a03d9bb811f593d0cea
https://hal.archives-ouvertes.fr/hal-03344067/file/Article.pdf
https://hal.archives-ouvertes.fr/hal-03344067/file/Article.pdf
Autor:
Thomas Leweke, Ahmed Eldemerdash
Publikováno v:
Journal of Physics: Conference Series
Journal of Physics: Conference Series, IOP Publishing, 2021, 1934, ⟨10.1088/1742-6596/1934/1/012006⟩
Wake Conference
Wake Conference, Jun 2021, Visby (virtuel), Sweden
Journal of Physics: Conference Series, 2021, 1934, ⟨10.1088/1742-6596/1934/1/012006⟩
Journal of Physics: Conference Series, IOP Publishing, 2021, 1934, ⟨10.1088/1742-6596/1934/1/012006⟩
Wake Conference
Wake Conference, Jun 2021, Visby (virtuel), Sweden
Journal of Physics: Conference Series, 2021, 1934, ⟨10.1088/1742-6596/1934/1/012006⟩
In this paper, we study experimentally the fluid-structure interaction of a simplified small-scale rotor operating in a water channel. The rotor consists of a single untwisted rectangular blade and is tested with various pitch angles at different rot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3b18173b4daeaa315b88ac322de00aa
https://hal.archives-ouvertes.fr/hal-03344058/document
https://hal.archives-ouvertes.fr/hal-03344058/document
Publikováno v:
AIAA Scitech 2021 Forum
AIAA Scitech 2021 Forum, Jan 2021, VIRTUAL EVENT, United States. ⟨10.2514/6.2021-1088⟩
AIAA Scitech 2021 Forum, Jan 2021, VIRTUAL EVENT, United States. ⟨10.2514/6.2021-1088⟩
International audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9deb0f2a2eb9ba0dd6cc6a910cb8acfc
https://hal.archives-ouvertes.fr/hal-03416209/document
https://hal.archives-ouvertes.fr/hal-03416209/document