Accession Number : AD0914300

Title :   An Interferometer Study of Air Flow Near the Exit of a Constant Area Duct Followed by a Variable Divergent Section.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Harris, Raymond Lee

Report Date : MAR 1971

Pagination or Media Count : 49

Abstract : Fluid properties of both fully-developed, turbulent flow and undeveloped, laminar flow near the exit of a constant area duct followed by a variable divergent section were investigated and compared. Points of flow separation were also compared. A Mach-Zehnder interferometer was used to obtain density data and flow visualization. The fluid properties of the fully-developed, turbulent flow changed more than the undeveloped, laminar flow at the constant area exit as the divergence angle increased. The two regimes of flow appeared to be identical through the divergent section. (Author)

Descriptors :   (*DUCT INLETS, FLOW FIELDS), GAS FLOW, TURBULENCE, LAMINAR FLOW, MATHEMATICAL MODELS, FLOW SEPARATION, INTERFEROMETERS, REYNOLDS NUMBER, BOUNDARY LAYER, VARIABLE AREA NOZZLES, NOZZLE GAS FLOW, PRESSURE, VELOCITY, COMPRESSIBLE FLOW, FLUID MECHANICS, FLOW VISUALIZATION, THESES.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE