Second Symposium on Turbulence and Shear Flow Phenomena
DOI: 10.1615/TSFP2
CHARACTERIZATION METHODS FOR COHERENT STRUCTURES IN TURBULENT FLOWS AND THEIR POSSIBLE IMPACTS ON NUMERICAL SIMULATIONS
pages 5-14
DOI: 10.1615/TSFP2.750
ABSTRAKT
A review of selected experiments on coherent structures in turbulent shear flow is performed. Different experimental approaches (conditional averages, filtering techniques, wavelets, Linear Stochastic Estimation and Proper Orthogonal Decomposition) are illustrated and their links with computations (LES, DNS, SDM,...) are emphasized. Particularly it is shown that some kind of universal behavior of the background turbulence can be retrieved from these various experimental methods.