Accession Number : AD0636998

Title :   ON SIMILARITY SOLUTIONS OF UNSTEADY VISCOUS FREE-MIXING.

Descriptive Note : Interim scientific rept.

Corporate Author : POLYTECHNIC INST OF BROOKLYN N Y DEPT OF AEROSPACE ENGINEERING AND APPLIED MECHANICS

Personal Author(s) : Steiger, M. H. ; Longspaugh,G.

Report Date : MAY 1966

Pagination or Media Count : 20

Abstract : Unsteady, incompressible, planar and axisymmetric, laminar free-mixing is investigated by a boundary layer type analysis with similarity methods. Four types of flows are considered; namely, the asymptotic symmetric wake wherein the equations are linearized with respect to velocity perturbations, the symmetric wake wherein velocity differences can be large, the jet issuing into a quiescent ambient, and the asymmetric wake, i.e., the merging of two semi-infinite planar streams. Similarity solutions are shown to exist in all but one of the aforementioned flows; the exception is the axisymmetric jet. Solutions of the asymptotic wake, the two-dimensional nonlinear wake and the two-dimensional jet are presented. (Author)

Descriptors :   (*JET MIXING FLOW, VISCOSITY), WAKE, PERTURBATION THEORY, BOUNDARY LAYER, MATHEMATICAL ANALYSIS

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE