Analyzing the dynamics of cellular flames

Abstract Video data from experiments on the dynamics of two-dimensional flames are analyzed. The Karhumen-Loeve (KL) analysis is used to identify the dominant spatial structures and their temporal evolution fot several dynamical regimes of the flames. A data analysis procedure to extract and process the boundaries of flame cells is described. It is shown how certain spatial structures are associated with certain temporal events. The existence of small scale, high frequency, turbulent background motion in almost all regimes is revealed.

[1]  Nadine Aubry,et al.  The dynamics of coherent structures in the wall region of a turbulent boundary layer , 1988, Journal of Fluid Mechanics.

[2]  Dieter Armbruster,et al.  Phase-space analysis of bursting behavior in Kolmogorov flow , 1992 .

[3]  Bernard J. Matkowsky,et al.  NONLINEAR DYNAMICS OF CELLULAR FLAMES , 1992 .

[4]  Robert M. Haralick,et al.  Morphologic edge detection , 1987, IEEE J. Robotics Autom..

[5]  A. Hansen,et al.  Aerodynamics of Horizontal-Axis Wind Turbines , 1993 .

[6]  P. Holmes,et al.  The Proper Orthogonal Decomposition in the Analysis of Turbulent Flows , 1993 .

[7]  L. Sirovich.  Turbulence and the dynamics of coherent structures. III. Dynamics and scaling , 1987 .

[8]  V. A. Krasil’nikov,et al.  Atmospheric turbulence and radio-wave propagation , 1962 .

[9]  L. Sirovich.  Turbulence and the dynamics of coherent structures. I. Coherent structures , 1987 .

[10]  Robbins,et al.  Identification of intermittent ordered patterns as heteroclinic connections. , 1996, Physical review letters.

[11]  Gérard G. Medioni,et al.  Detection of Intensity Changes with Subpixel Accuracy Using Laplacian-Gaussian Masks , 1986, IEEE Transactions on Pattern Analysis and Machine Intelligence.

[12]  Dieter Armbruster,et al.  kltool: A tool to analyze spatiotemporal complexity. , 1994, Chaos.

[13]  K. Robbins,et al.  Deterministic Chaos in Laminar Premixed Flames: Experimental Classification of Chaotic Dynamics , 1993 .

[14]  R. Haralick,et al.  Morphologic edge detection , 1986, IEEE J. Robotics Autom..