Experimental and numerical analyses of airflow around two cylinders angled to the direction of wind

• Autorzy: Padewska-Jurczak Agnieszka , Szczepaniak Piotr , Walentyński Ryszard

Identyfikatory

DOI

10.24425/bpasts.2023.144578

• Języki publikacji: EN

Abstrakty

EN

The analyses aim to determine aerodynamic force coefficients in the case of airflow around two smooth or rough cylinders positioned at different angles to the direction of wind velocity. Such systems, for instance, may be part of a tubular water slide. The results were compared with the values of the interference coefficient of the cylinders arranged in a row included in Eurocode EN 1991 part 4. The aerodynamic forces of the cylinder systems were determined on the basis of experimental tests conducted in a wind tunnel. To verify the above results, CFD (computational fluid dynamics) simulations were prepared. An important observation is that for the angle of yaw β = 0◦, the negative component of the lift force (lateral) fy is shown, while for the other cases, the situation is opposite and the lateral force points outside the gap (upward). The second is that the results of aerodynamic drag for rough cylinders arranged in a row and calculated according to EN 1991 part 4 may be underestimated. The flow around the pair of smooth cylinders is quite different from that of the rough ones, because during the experiment the first falls into the critical flow regime, while the second has supercritical characteristics.

Słowa kluczowe

EN

wind action; CFD; computational fluid dynamics; FVM; finite volume method; ANSYS Fluent; wind tunnel test; water slide

PL

działanie wiatru; CFD; obliczeniowa dynamika płynów; FVM; metoda objętości skończonych; ANSYS Fluent; testy w tunelu aerodynamicznym; zjeżdżalnia wodna

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2023
• Tom: Vol. 71, nr 1
• Strony: art. no. e144578
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Padewska-Jurczak Agnieszka

• Faculty of Civil Engineering, Department of Mechanics and Bridges, ul. Akademicka 5, 44-100 Gliwice, Poland

• https://orcid.org/0000-0003-4129-2081

autor

Szczepaniak Piotr

• Faculty of Civil Engineering, Department of Mechanics and Bridges, ul. Akademicka 5, 44-100 Gliwice, Poland

autor

Walentyński Ryszard

• Faculty of Civil Engineering, Department of Mechanics and Bridges, ul. Akademicka 5, 44-100 Gliwice, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).