PIV measurement of turbulent flow within a street canyon: Detection of coherent motion

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10132818" target="_blank" >RIV/00216208:11320/12:10132818 - isvavai.cz</a>

Alternative codes found

RIV/61388998:_____/12:00376552

Result on the web

<a href="http://www.sciencedirect.com/science/article/pii/S0167610512000414" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0167610512000414</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jweia.2012.02.017" target="_blank" >10.1016/j.jweia.2012.02.017</a>

Result language

angličtina

Original language name

PIV measurement of turbulent flow within a street canyon: Detection of coherent motion

Original language description

Turbulent flow inside a street canyon was investigated in a wind-channel. Velocity measurements were performed in vertical planes by means of particle image velocimetry (PIV) at the repetition rate 500 Hz. Two geometries were used for comparison purposes: buildings with pitched roofs and with flat roofs. Both induce different dynamic regimes in the street, so that the generated turbulent flows are of different categories. Velocity data were analysed by proper orthogonal decomposition (POD). POD identifies the most dominant modes with high coherency in the flow and also evaluates the relative contributions of each mode to the overall kinetic energy of turbulence. Rigorous analysis of correctness of the physical interpretation of such decomposition was carried out. POD reconstruction of the original vector field was performed and the accuracy of the method was evaluated. Wavelet analysis was applied to the time-series of the POD expansion coefficients in order to reveal the dynamics of t

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BK - Liquid mechanics

OECD FORD branch

—

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

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

2012

Issue of the periodical within the volume

104-106

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

12

Pages from-to

302-313

UT code for WoS article

—

EID of the result in the Scopus database

—