Wavelet Cross-Correlation Analysis of Turbulent Mixing from Large-Eddy-Simulations
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The complex interactions existing between turbulence and mixing in a bluff-body stabilised flame configuration is investigated by means of a wavelet cross-correlation analysis on Large Eddy Simulations. The combined approach allows to better point out typical features of unsteady turbulent flows with mixing through the characterisation of the processes involved both in time and scales. The wavelet cross-correlation analysis of the time signals of velocity and mixture fraction fluctuations can be an an effective tool to study the processes involved in turbulent mixing flows which are of great interest in combustion problems.
4 pages with 4 color figures (to be published in the proceedings of the 8th European Turbulence Conference, Barcelona, June 27-30, 2000)
4 pages with 4 color figures (to be published in the proceedings of the 8th European Turbulence Conference, Barcelona, June 27-30, 2000)