PIV analysis of near-wake flow patterns of an ice-accreted bridge cable in low and moderately turbulent wind

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F19%3A00505717" target="_blank" >RIV/68378297:_____/19:00505717 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21110/19:00333725

Result on the web

<a href="https://doi.org/10.1016/j.jweia.2019.06.011" target="_blank" >https://doi.org/10.1016/j.jweia.2019.06.011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jweia.2019.06.011" target="_blank" >10.1016/j.jweia.2019.06.011</a>

Result language

angličtina

Original language name

PIV analysis of near-wake flow patterns of an ice-accreted bridge cable in low and moderately turbulent wind

Original language description

The study contributes to the explanation of flow behaviour and the basis of phenomena existing during two dimensional airflow around an ice-accreted cylinder, representing the section model of a bridge cable. The geometrical features and flow characteristics of the near-wake flow patterns of the iced cable were investigated within the Reynolds number range of 2.2⋅10^4–6.4⋅10^4 in low and moderately turbulent flow. The experimental procedure was conducted to create ice accretion on the cylindrical model. The shape of the ice was registered using a photogrammetry method. For the aerodynamic investigations the ice-accreted model was reproduced at a smaller scale by means of 3D printing. Representative snapshots of the flow field behind the stationary horizontal simulated iced cable were digitally analyzed by the Particle Image Velocimetry technique. The flow visualization provided quantitative data about the velocity and the direction of flow streams within both the near-wake and the sidewise regions of distributed flow around the model. Evidence of the existence of the vortex excitation proces was obtained at three principal angles of attack. The characteristics of the vortex street and the location of the flow boundary layer separation points were recognized. The obtained results were compared with results for a smooth cylinder.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/GA19-04695S" target="_blank" >GA19-04695S: Aerodynamic response of cylinder with surface irregularities in critical and transition Reynolds number regimes</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

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

Name of the periodical

Journal of Wind Engineering and Industrial Aerodynamics

ISSN

0167-6105

e-ISSN

—

Volume of the periodical

191

Issue of the periodical within the volume

August

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

15

Pages from-to

297-311

UT code for WoS article

000474561600023

EID of the result in the Scopus database

2-s2.0-85068217962