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Název:
Variation of Strouhal number on iced cable in sub-transitional range
Autoři: Pospíšil, Stanislav ; Górski, P. ; Kuznetsov, Sergeii ; Tatara, M. ; Marušić, A.
Typ dokumentu: Příspěvky z konference
Konference/Akce: Engineering mechanics 2015 /21./, Svratka (CZ), 2015-05-11 / 2015-05-14
Rok: 2015
Jazyk: eng
Abstrakt: The influence of ice accretion, angle of attack and Reynolds number on the flow field around iced cables of the cable-supported bridges is not clearly understood. The paper presents results of a wind tunnel investigations of Strouhal number of stationary iced cable model of cable-supported bridges. The investigations were carried out in a Climatic Wind Tunnel Laboratory of ITAM. The methodology leading to the experimental icing of the inclined cable model in the climatic section of the laboratory was prepared. For the aerodynamic investigations the iced cable model in a smaller scale was reproduced with combination of photography and 3-D printing procedure. The Strouhal number (St) was determined within the range of the Reynolds number (Re) between 2.4×10^4 and 16.4×10^4, based on the dominant vortex shedding frequency measured in the flow behind the model. The model was orientated at three principal angles of wind attack for each of the Re. Good agreement with the generally reported value in the sub-critical Re range for a circular cylinder was obtained.
Klíčová slova: angle of attack; bridge cable; ice accretion; Strouhal number; vortex shedding frequency
Zdrojový dokument: Engineering mechanics 2015. 21st International conference, May 11-14, 2015, Svratka, Czech Republic. Extended abstracts, ISBN 978-80-86246-42-0, ISSN 1805-8248
Instituce: Ústav teoretické a aplikované mechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0246830
Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-203138
Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav teoretické a aplikované mechaniky
Konferenční materiály > Příspěvky z konference
Autoři: Pospíšil, Stanislav ; Górski, P. ; Kuznetsov, Sergeii ; Tatara, M. ; Marušić, A.
Typ dokumentu: Příspěvky z konference
Konference/Akce: Engineering mechanics 2015 /21./, Svratka (CZ), 2015-05-11 / 2015-05-14
Rok: 2015
Jazyk: eng
Abstrakt: The influence of ice accretion, angle of attack and Reynolds number on the flow field around iced cables of the cable-supported bridges is not clearly understood. The paper presents results of a wind tunnel investigations of Strouhal number of stationary iced cable model of cable-supported bridges. The investigations were carried out in a Climatic Wind Tunnel Laboratory of ITAM. The methodology leading to the experimental icing of the inclined cable model in the climatic section of the laboratory was prepared. For the aerodynamic investigations the iced cable model in a smaller scale was reproduced with combination of photography and 3-D printing procedure. The Strouhal number (St) was determined within the range of the Reynolds number (Re) between 2.4×10^4 and 16.4×10^4, based on the dominant vortex shedding frequency measured in the flow behind the model. The model was orientated at three principal angles of wind attack for each of the Re. Good agreement with the generally reported value in the sub-critical Re range for a circular cylinder was obtained.
Klíčová slova: angle of attack; bridge cable; ice accretion; Strouhal number; vortex shedding frequency
Zdrojový dokument: Engineering mechanics 2015. 21st International conference, May 11-14, 2015, Svratka, Czech Republic. Extended abstracts, ISBN 978-80-86246-42-0, ISSN 1805-8248
Instituce: Ústav teoretické a aplikované mechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0246830
Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-203138
Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav teoretické a aplikované mechaniky
Konferenční materiály > Příspěvky z konference
Záznam vytvořen dne 2016-03-08, naposledy upraven 2021-11-24.