The influence of the blockage effect on the aerodynamic characteristics of the bluff body in the air flow

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F24%3A00600493" target="_blank" >RIV/68378297:_____/24:00600493 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The influence of the blockage effect on the aerodynamic characteristics of the bluff body in the air flow
Original language description
Experiments on airflow around bluff bodies were conducted in a confined space in a wind tunnel. The presence of the body induces the blockage effect—reducing the cross-sectional area of the tunnel and causing an increase in flow velocity. 2D simulations of flow around sharply edged bodies (a rectangle with a 2:1 side ratio and a U-profile with a non-porous barrier) were performed at various angles of attack using the RANS k-ω SST model to evaluate the influence of the blockage effect. Two different computational domains were used: the first, with spacing between confining walls matching the actual dimensions of the wind tunnel at our institute (1.9 m), and the second, with a width of 7.5 m, assuming the blockage effect to be negligible in this case. The mean drag and lift coefficients, fluctuating lift coefficient, and Strouhal number were evaluated for both cases.
Czech name
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Czech description
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Project
<a href="/en/project/GA24-13061S" target="_blank" >GA24-13061S: The Combined Effects of Aeroelastic Instabilities on Civil Engineering Structures</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Computational mechanics 2024. Proceedings of computational mechanics 2024
ISBN
978-80-261-1249-5
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
68-71
Publisher name
University of West Bohemia
Place of publication
Plzeň
Event location
Srní
Event date
Nov 4, 2024
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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