Original title: Wavelet and POD Analysis of Turbulent Flow Within Street Canyon
Authors: Kellnerová, Radka ; Kukačka, Libor ; Uruba, Václav ; Antoš, Pavel ; Odin, J. ; Jaňour, Zbyněk
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2010, Liberec (CZ), 2010-11-24 / 2010-11-26
Year: 2010
Language: eng
Abstract: 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.
Keywords: proper orthogonal decomposition; sweet ejection; wavelet analysis
Project no.: CEZ:AV0Z20760514 (CEP)
Host item entry: International Conference Experimental Fluid Mechanics 2010, ISBN 978-80-7372-670-6

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0192671

Permalink: http://www.nusl.cz/ntk/nusl-42330


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Research > Institutes ASCR > Institute of Thermomechanics
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