The Effect of the Surface Roughness of the Circular Cylinder on Drag Coefficient

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F23%3A10253535" target="_blank" >RIV/61989100:27120/23:10253535 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.aip.org/aip/acp/article-abstract/2950/1/020017/2928766/The-effect-of-the-surface-roughness-of-the?redirectedFrom=fulltext" target="_blank" >https://pubs.aip.org/aip/acp/article-abstract/2950/1/020017/2928766/The-effect-of-the-surface-roughness-of-the?redirectedFrom=fulltext</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0183529" target="_blank" >10.1063/5.0183529</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Effect of the Surface Roughness of the Circular Cylinder on Drag Coefficient

Popis výsledku v původním jazyce

The use of numerical simulations to obtain drag coefficient values cd for flow around a rough cylinder in the subcritical and critical Re number regions were the aim of this paper. The model of the cylinder with the trapezoidal waves on the surface was calculated. The results from simulations were compared with standard and available experimental results obtained by measuring of a rough cylinder with similar parameters of the relative roughness and flow regime. ANSYS Fluent software using the RANS SST k-ω turbulence model was chosen for the numerical simulations. This comparative study confirms the influence of the density and shape of protrusions on the value of the drag coefficient and thus on the shift of the position of the of cd drop to lower Re numbers.

Název v anglickém jazyce

The Effect of the Surface Roughness of the Circular Cylinder on Drag Coefficient

Popis výsledku anglicky

The use of numerical simulations to obtain drag coefficient values cd for flow around a rough cylinder in the subcritical and critical Re number regions were the aim of this paper. The model of the cylinder with the trapezoidal waves on the surface was calculated. The results from simulations were compared with standard and available experimental results obtained by measuring of a rough cylinder with similar parameters of the relative roughness and flow regime. ANSYS Fluent software using the RANS SST k-ω turbulence model was chosen for the numerical simulations. This comparative study confirms the influence of the density and shape of protrusions on the value of the drag coefficient and thus on the shift of the position of the of cd drop to lower Re numbers.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20100 - Civil engineering

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

SPACE 2022 : Structural and Physical Aspects of Construction Engineering : 5th international scientific conference : abstract proceedings : October 12-14, 2022, High Tatras, Slovakia

ISBN

978-80-553-4156-9

ISSN

—

e-ISSN

1551-7616

Počet stran výsledku

6

Strana od-do

1-6

Název nakladatele

Technical University of Košice

Místo vydání

Košice

Místo konání akce

Vysoké Tatry

Datum konání akce

12. 10. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—