Detailed analysis of POD method applied on turbulent flow
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10132835" target="_blank" >RIV/00216208:11320/12:10132835 - isvavai.cz</a>
Result on the web
<a href="http://www.epj-conferences.org/index.php?option=com_article&access=doi&doi=10.1051/epjconf/20122501038&Itemid=129" target="_blank" >http://www.epj-conferences.org/index.php?option=com_article&access=doi&doi=10.1051/epjconf/20122501038&Itemid=129</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjconf/20122501038" target="_blank" >10.1051/epjconf/20122501038</a>
Alternative languages
Result language
angličtina
Original language name
Detailed analysis of POD method applied on turbulent flow
Original language description
Proper orthogonal decomposition (POD) of a very turbulent flow inside a street canyon is performed. The energy contribution of each mode is obtained. Also, physical meaning of the POD result is clarified. Particular modes of POD are assigned to the particular flow events like a sweep event, a vortex behind a roof or a vortex at the bottom of a street. Test of POD sensitivity to the acquisition time of data records is done. Test with decreasing sample frequency is also executed. Further, interpolation ofPOD expansion coefficient is performed in order to test possible increase in sample frequency and get new information about the flow from the POD analysis. We tested a linear and a spline type of the interpolation and the linear one carried out a slightly better result.
Czech name
—
Czech description
—
Classification
Type
O - Miscellaneous
CEP classification
BK - Liquid mechanics
OECD FORD branch
—
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů