Accession Number : ADA267182


Title :   Final Technical Report on Air Force Office of Scientific Research Grant AFOSR-90-0124


Descriptive Note : Final rept. 15 Jan 90-30 Sep 92,


Corporate Author : PRINCETON UNIV NJ


Personal Author(s) : Orszag, Steven A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a267182.pdf


Report Date : 05 Mar 1993


Pagination or Media Count : 14


Abstract : This report summarizes results published with support of this grant on renormalization group methods for large-eddy simulations (LES) of fluid flows, studies of the fundamental dynamics of compressible turbulence, development of methods to study strongly interacting vortices, methods to study intermittent probability distributions in turbulence, and studies of dynamical issues involved in intermittent turbulence. Publications from 31 papers and 2 book chapter are summarized. The results demonstrate the utility of LES techniques, the differences between incompressible and compressible turbulence, and advanced models for small-scale structure that lead a series of surprising results, including a two-fluid model for small-scales in high Reynolds number turbulence.


Descriptors :   *FLUID DYNAMICS , *EDDY CURRENTS , *FLUID FLOW , MATHEMATICAL MODELS , ALGORITHMS , COMPUTERIZED SIMULATION , MODELS , DISTRIBUTION , DYNAMICS , PROBABILITY , STRUCTURES , REYNOLDS NUMBER , VISCOSITY , TURBULENCE , VORTICES , COMPRESSIBLE FLOW , SCALE , FLUIDS , FLOW , KINETICS


Subject Categories : Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE