DECOMPOSITION METHODS FOR A PIV DATA ANALYSIS WITH APPLICATION TO A BOUNDARY LAYER SEPARATION DYNAMICS

0352464 - ÚT 2011 RIV CZ eng C - Conference Paper (international conference)
Uruba, Václav
DECOMPOSITION METHODS FOR A PIV DATA ANALYSIS WITH APPLICATION TO A BOUNDARY LAYER SEPARATION DYNAMICS.
XXIX. Setkání kateder mechaniky tekutin a termomechaniky. Ostrava: Vysoká škola báňská – Technická univerzita Ostrava, 2010 - (Dvořák, L.; Fojtášek, K.; Krutil, J.; Zavadil, L.), s. 301-302. ISBN 978-80-248-2244-0.
[Setkání kateder mechaniky tekutin a termomechaniky /29./. Rožnov pod Radhoštěm (CZ), 23.06.2010-25.06.2010]
R&D Projects: GA ČR GA101/08/1112; GA ČR GAP101/10/1230
Institutional research plan: CEZ:AV0Z20760514
Keywords : decomposition * boundary layer separation * PIV
Subject RIV: BK - Fluid Dynamics

Separation of the turbulent boundary layer (BL) on a flat plate under adverse pressure gradient was studied experimentally using Time-Resolved PIV technique. The results of spatio-temporal analysis of flow-field in the separation zone are presented. For this purpose, the POD (Proper Orthogonal Decomposition) and its extension BOD (Bi-Orthogonal Decomposition) techniques are applied as well as dynamical approach based on POPs (Principal Oscillation Patterns) method. The study contributes to understanding mechanisms of a boundary layer separation process. The acquired information could be used to improve strategies of a boundary layer separation control.
Permanent Link: http://hdl.handle.net/11104/0191967