Pregled bibliografske jedinice broj: 777852
Investigation of Strouhal number of iced cable model of cable-supported bridges with respect to angle of wind attack
Investigation of Strouhal number of iced cable model of cable-supported bridges with respect to angle of wind attack // International Symposium on Environmental Effects on Buildings and People /7./, Lublin - Krakow, 20.10.2014-22.10.2014, PL / Lipecki, T. ; Flaga, A. (ur.).
Krakov: Polish Association for Wind Engineering, 2014. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Investigation of Strouhal number of iced cable model of cable-supported bridges with respect to angle of wind attack
Autori
Górski, Piotr ; Pospíšil, Stanislav ; Kuznetsov, Sergeii ; Tatara, Marcin ; Marušić, Ante
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
International Symposium on Environmental Effects on Buildings and People /7./, Lublin - Krakow, 20.10.2014-22.10.2014, PL
/ Lipecki, T. ; Flaga, A. - Krakov : Polish Association for Wind Engineering, 2014
ISBN
978-83-932544-9-1
Skup
7th International symposium on environmental effects on building and people. Actions, influences, interactions, discomfort
Mjesto i datum
Kraków, Poljska, 20.10.2014. - 22.10.2014
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
bridge cable - ice accretion - Strouhal number; angle of attack; vortex shedding frequency
Sažetak
The Strouhal number is one of the most important parameter which is necessary for an analysis of the vortex excitation response of slender structures. the paper presents the method and results of wind tunnel inverstigation of Strouhal number of iced cable model of cable-supported bridges. The investigation were conducted in the Climatic Wind Tunnel Laboratory of the Czech Academy of Sciences in Telč. The methodology leading to the experimental icing of the inclined cable model in the climatic section of the laboratory was prepared. The shape of the ice on the cable was registred by photogrammetry and a numerical evaluation. For the aerodymanic investigations the iced cable model on smaller scale was reproduced with 3D printing procedure. The Strouhal number was determined within the range of the Reynolds number between 2.8e4 and 12.2e4, 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 Reynolds number values.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
