In this group of projects, wavelet analysis is applied to time series for which traditional methods appear unsatisfactory. I am glad to acknowledge my colleagues who made their experimental data available to our group, and other coworkers whose skills and ideas contributed to these results. Detailed credits are given in the papers.

Publications from this work include:

 

·         " `Decomposition of Mixing Layer Turbulence into Coherent Structures and Background Fluctuations'

Flow Turbulence and Combustion 64, 301-328, 2000.

·         " `Detection, tracking and analysis of turbulent spots and other coherent structures in unsteady transition'

NASA CR, 2000-210694.

·         " `The estimation of integral time scales in unsteady flows'

NASA TM 2000-209452

·         " Three Lectures on the Application of Wavelets to Experimental Data Analysis

Von Karman Institute Lecture Series on Advanced Measurement Techniques, April 6-9, 1998.

·         "On the large scale organization of a turbulent boundary layer disturbed by a circular cylinder "

Proceedings of Turbulent Shear Flows XI, 1997.

·         "Demonstration of wavelet techniques in the spectral analysis of bypass transition data"

NASA Technical Paper # 3555, 1997.

·         "Coherent Structures: Past, Present and Future"

Proceedings of European Turbulence Conference VI, 1996.

·         " The analysis of paper variability using the wavelet transform, Part 1: Wavelet theory and analytical techniques

ESPRI Research Report # 104, 117-143 (1996)

·         " The analysis of paper variability using the wavelet transform, Part 2: Analysis of simulated paper formation

ESPRI Research Report # 104, 145-177 (1996)

·         "Transport in bypass transition: mapping the active time scales using wavelet techniques"

Proceedings of Turbulent Shear Flows X, 1995.

·         "Effect of unsteady wake-passing frequency on boundary layer transition --- experimental investigation and wavelet analysis"

ASME Paper 95-GT-437, 1995.

·         "Wavelet analysis of olfactory nerve response to stimulus"

Journal of Theoretical Biology 177, 215-236, 1995.

·         Wavelet analysis of experimental data: some methods and the underlying physics"

Invited AIAA Paper 94-2281 presented at the 1994 AIAA Fluid Dynamics Conference, Colorado Springs, CO.

·         "Wavelet statistics and the near-field structure of coaxial jets"

AIAA Paper 94-2323, presented at the 1994 AIAA Fluid Dynamics Conference, Colorado Springs, CO.

·         "On the structure of two-dimensional wakes behind a pair of flat plates"

Physics of Fluids, A6, pp. 297-305, 1994.

Jacques Lewalle, jlewalle@syr.edu