Structure of turbulence in stratified flow : aircraft data from SESAME and ALPEX Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/9306t262w

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  • Several horizontal flight segments from SESAME and ALPEX are studied using structure functions and specral analysis methods. Theoretical analysis of the relative errors in structure function and correlation function in the presence of large scale wave activity is presented. The effect of stratification and shear on the -5/3 inertial subrange is noted. The expected ratio of horizontal velocity components for spectra and structure functions (4/3) is observed in the inertial subrange. The observed changes in the aspect ratio (defined as the square root of ratio of vertical velocity structure function to the mean horizontal velocity structure function) with turbulence strength and stratification are analysed.
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