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Conference papers
Decomposition of time-resolved tomographic PIV
Abstract : An experimental study has been conducted on a transitional water jet at a Reynolds number of Re = 5000. Flow fields have been obtained by means of time-resolved tomographic particle image velocimetry (TR-TOMO PIV) capturing all relevant spatial and temporal scales. The measured three-dimensional flow fields have then been postprocessed by the dynamic mode decomposition (DMD) which identifies coherent structures that contribute significantly to the dynamics of the jet. Where the jet exhibits a primary axisymmetric instability followed by a pairing of the vortex rings, dominant dynamic modes have been extracted together with their amplitude distribution. These modes represent a basis for the low-dimensional description of the dominant flow features.
Cited literature [5 references]
https://hal-polytechnique.archives-ouvertes.fr/hal-01052852
Contributor : Denis Roura <>
Submitted on : Monday, July 28, 2014 - 9:52:06 PM
Last modification on : Friday, May 14, 2021 - 2:14:01 PM
Long-term archiving on: : Tuesday, November 25, 2014 - 7:41:07 PM
Contributor : Denis Roura <>
Submitted on : Monday, July 28, 2014 - 9:52:06 PM
Last modification on : Friday, May 14, 2021 - 2:14:01 PM
Long-term archiving on: : Tuesday, November 25, 2014 - 7:41:07 PM
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