Accession Number : ADA191253

Title :   Final Report on AFOSR (Air Force Office of Scientific Research) Contract F49620-83-C-0064 on Massachusetts Institute of Technology, Cambridge. Volume 1.

Descriptive Note : Rept. for 1 Feb 83-30 Nov 84,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF MATHEMATICS

Personal Author(s) : Orszag, Steven A

PDF Url : ADA191253

Report Date : May 1987

Pagination or Media Count : 50

Abstract : This document contains papers which summarize work done on this research project. The major results include: 1) Development of renormalization group techniques for large-eddy simulations of turbulent flows; 2) The first direct numerical simulation of turbulent spots in channel and boundary layer flows; 3) The further development of spectral methods for turbulence simulations; 4) The identification of secondary instability modes in free shear layers; 5) The development of an efficient multi-grid marching method for solution of the parabolized Navier-Stokes equations; 6)A mathematical analysis of boundary conditions for the parabolized compressible Navier-Stokes equations; and 7) The further development of a method to improve numerical solution of singular perturbation problems by use of asymptotic approximations.

Descriptors :   *BOUNDARY LAYER FLOW, *TURBULENCE, APPROXIMATION(MATHEMATICS), ASYMPTOTIC SERIES, BOUNDARIES, COMPRESSIBLE FLOW, LAYERS, MATHEMATICAL ANALYSIS, MATHEMATICAL MODELS, NAVIER STOKES EQUATIONS, NUMERICAL ANALYSIS, PARABOLAS, PERTURBATIONS, SECONDARY, SHEAR PROPERTIES, SIMULATION, SOLUTIONS(GENERAL), STABILITY, TURBULENT FLOW, CHANNEL FLOW, EDDIES(FLUID MECHANICS)

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE