Accession Number : AD0784438

Title :   Buoyancy Effects on a Turbulent Shear Flow.

Descriptive Note : Technical rept.,

Corporate Author : COLORADO STATE UNIV FORT COLLINS FLUID DYNAMICS AND DIFFUSION LAB

Personal Author(s) : Meroney,Robert N.

Report Date : APR 1974

Pagination or Media Count : 108

Abstract : Utilizing a simple time dependent one-dimensional example as a test case the report discusses a solution which represents the important characteristics of a buoyancy dominated shear flow by solving four partial differential equations in addition to the mean equations of motion. This suggested model solves equations for total turbulent kinetic energy, total turbulent temperature fluctuations, eddy dissipation, and thermal eddy dissipation. Three separate versions of this model are discussed. The final version replicates results for a much more complicated version. The advantages for two and three dimensional problems are even greater. (Modified author abstract)

Descriptors :   *Buoyancy, *Gas dynamics, *Turbulent flow, *Shear properties, One dimensional flow, Problem solving, Partial differential equations, Mathematical models, Equations of motion, Kinetic energy, Temperature, Vortices, Stratification, Atmospheric motion

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE