Accession Number : ADA191600

Title :   Analysis of Molecular Mixing and Chemical Reaction in Mixing Layer,

Corporate Author : CALIFORNIA UNIV IRVINE DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Cetegen, B M ; Sirignano, W A

PDF Url : ADA191600

Report Date : 14 Jan 1988

Pagination or Media Count : 9

Abstract : This paper concerns an analytical study of molecular mixing and finite rate chemical reactions in an infinite row of vortices representing a mixing layer. Diffusion equations for reacting and non-reacting species are solved locally in the Lagrangian frame of reference following material elements. The flowfield is a given for the problem. The concentration distributions in the vortex structure are composed from these analytical solutions and presented for several cases. The probability density functions constructed from these distributions are compared with the mixing layer experiments. For the cases studied, the comparisons indicate encouraging agreement for the reacting flow case. However, some differences are present for the non-reacting flows. Keywords: Turbulent reacting flows; Molecular mixing, Reaction in vortical structures.

Descriptors :   *CHEMICAL REACTIONS, *FLOW FIELDS, *LAYERS, *MIXING, DIFFUSION, EQUATIONS, FLOW, FRAMES, LAGRANGIAN FUNCTIONS, MOLECULES, PROBABILITY DENSITY FUNCTIONS, RATES, SOLUTIONS(GENERAL), STRUCTURES, VORTICES

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE