Wind tunnel testing of U-shaped and rectangular prisms at two turbulence levels of incoming flow

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F25%3A00636811" target="_blank" >RIV/68378297:_____/25:00636811 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Wind tunnel testing of U-shaped and rectangular prisms at two turbulence levels of incoming flow

Popis výsledku v původním jazyce

The paper presents the results of experimental wind tunnel testing of rectangular and U-shaped beams. The aerodynamic coefficients of drag and lift were measured together with the pressure coefficients on the surface test bodies of the beams in section. The results were compared for two intensities of turbulence of the incoming flow. Our observations generally indicate that the pressure distribution and aerodynamic forces are affected by the turbulence intensity of the incoming flow. Maximum lift forces are reduced by turbulent flow, and the drag coefficient is reduced when the flow direction is close to zero. However, turbulence can increase drag forces at higher angles of attack. The pressure distribution over the cross sections is drastically altered by turbulent flow. The mean suction pressure can increase by 83% at certain pressure taps. Turbulence intensity has little effect on windward pressure.

Název v anglickém jazyce

Wind tunnel testing of U-shaped and rectangular prisms at two turbulence levels of incoming flow

Popis výsledku anglicky

The paper presents the results of experimental wind tunnel testing of rectangular and U-shaped beams. The aerodynamic coefficients of drag and lift were measured together with the pressure coefficients on the surface test bodies of the beams in section. The results were compared for two intensities of turbulence of the incoming flow. Our observations generally indicate that the pressure distribution and aerodynamic forces are affected by the turbulence intensity of the incoming flow. Maximum lift forces are reduced by turbulent flow, and the drag coefficient is reduced when the flow direction is close to zero. However, turbulence can increase drag forces at higher angles of attack. The pressure distribution over the cross sections is drastically altered by turbulent flow. The mean suction pressure can increase by 83% at certain pressure taps. Turbulence intensity has little effect on windward pressure.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA24-13061S" target="_blank" >GA24-13061S: Kombinované účinky aeroelastických nestabilit na stavební konstrukce</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

EACWE 2025 Trondheim. Proceedings of the 9th European African Conference on Wind Engineering

ISBN

978-82-7482-205-4

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

300-303

Název nakladatele

Norwegian University of Science and Technology

Místo vydání

Trondheim

Místo konání akce

Trondheim

Datum konání akce

16. 6. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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