Počet záznamů: 1
Comparison of wavelet analysis with velocity derivatives for detection of shear layer and vortices inside a turbulent boundary layer
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SYSNO ASEP 0370298 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Comparison of wavelet analysis with velocity derivatives for detection of shear layer and vortices inside a turbulent boundary layer Tvůrce(i) Kellnerová, Radka (UT-L) RID, ORCID
Kukačka, Libor (UT-L) RID
Jurčáková, Klára (UT-L) RID, ORCID
Uruba, Václav (UT-L) RID, ORCID
Jaňour, Zbyněk (UT-L) RID, ORCIDZdroj.dok. Journal of Physics: Conference Series. - : Institute of Physics Publishing - ISSN 1742-6588
Roč. 318, - (2011), s. 1-10Poč.str. 10 s. Akce European Turbulence Conference /13./ Datum konání 12.09.2011-15.09.2011 Místo konání Warsaw Země PL - Polsko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Wavelet analysis ; street canyon ; POD Vědní obor RIV DG - Vědy o atmosféře, meteorologie CEZ AV0Z20760514 - UT-L (2005-2011) DOI 10.1088/1742-6596/318/6/062012 Anotace Detection of highly energetic structure in the turbulent flow can be easily done by wavelet analysis, especially with Morlet function as a mother wavelet for detection of repetitious low-frequency structures and Mexican hat for detection of vortices. Since wavelet analysis can be simply applied on one-point measurement, the better understanding of its meaning is welcome. In this project, turbulent boundary layer was investigated with focus on intermittent dynamics. PIV snapshot were used for comparison with Wavelet analysis results, since PIV was performed with high sample frequency (500 Hz). Instantaneous snapshots of velocity and vorticity were studied also by POD and spectra of particular expansion coefficients were computed. Vorticity from planar velocity vectors was used as a suitable methods for recognition of strongly deformed streamlines. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2012 Elektronická adresa http://iopscience.iop.org/1742-6596/318/6/062012?fromSearchPage=true
Počet záznamů: 1