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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Wavelet and POD Analysis of Turbulent Flow Within Street Canyon
 Kellnerová, Radka ; Kukačka, Libor ; Uruba, Václav ; Antoš, Pavel ; Odin, J. ; Jaňour, Zbyněk
Wavelet analysis of flow inside the street canyon is applied on highrepetition PIV and high-frequency hot wire data. Experiment is performed in windchannel with floor covered by series of street canyons.The passage of sweep and ejection events is detected as being long-term signature in lower frequencies. The passage of vortex is recognizable as circular patterns in higher frequencies on Wavelet spectrum.When using velocity vectors as input data, proper orthogonal decomposition (POD) reveals the most dominant modes in terms of turbulent kinetic energy.
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