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SPATIO-TEMPORAL ANALYSIS OF SWIRLING JET UNSTEADY BREAKDOWN
- 1.0352462 - ÚT 2011 RIV CZ eng C - Conference Paper (international conference)
Uruba, Václav - Oberleithner, K. - Sieber, M. - Hladík, Ondřej
SPATIO-TEMPORAL ANALYSIS OF SWIRLING JET UNSTEADY BREAKDOWN.
Colloquium Fluid Dynamics 2010: Proceedings. Prague: Institute of Thermomechanics AS CR, v. v. i., 2010 - (Jonáš, P.; Uruba, V.), s. 29-30. ISBN 978-80-87012-27-7.
[Colloquium Fluid Dynamics 2010. Praha (CZ), 20.10.2010-22.10.2010]
R&D Projects: GA AV ČR(CZ) IAA200760614; GA ČR GA101/08/1112
Institutional research plan: CEZ:AV0Z20760514
Keywords : swirling jet * vortex breakdown * spatio-temporal analysis
Subject RIV: BK - Fluid Dynamics
The swirling jet breakdown unsteady process has been examined experimentally using stereo PIV time resolved method. The experimental setup has been designed, build and prepared in HFI. It generates helical swirling jet and allows implementation of the jet breakdown. The Bi-Orthogonal Decomposition (BOD) method has been chosen for the data analysis the Proper Orthogonal Decomposition applied both in space and time. the BOD method offers decomposition into energetic modes in space (toposes) and in time (chronoses).
Permanent Link: http://hdl.handle.net/11104/0191965
Number of the records: 1