Accession Number : AD0832449

Title :   INVESTIGATION OF AIR FLOW NEAR THE EXIT OF A CONSTANT AREA DUCT.

Descriptive Note : Master's thesis,

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

Personal Author(s) : McFarlane, Glen L.

Report Date : MAR 1968

Pagination or Media Count : 62

Abstract : The behavior of air flow near the exit of a constant area duct choked by friction was investigated. The duct was 12 ft 6 in long with a rectangular cross section of 0.501 by 1.124 in. Mean Mach numbers as high as 1.08 and local Mach numbers as high as 1.17 were measured at the exit. A mean Mach number of unity was observed as far as 1/4 in upstream of the exit. A schlieren system showed rapid property changes along the last 1/4 in of duct and shock waves were observed when pressure probes were inserted into the flow. (Author)

Descriptors :   *ONE DIMENSIONAL FLOW), (*DUCTS, FRICTION, COMPRESSIBLE FLOW, SUBSONIC CHARACTERISTICS, SHOCK WAVES, PRESSURE, FLOW VISUALIZATION, PROBES, THESES, PRESSURE GAGES, INSTRUMENTATION, TEST METHODS.

Subject Categories : Pumps, Filters, Pipes, Tubing, Fittings & Vlvs
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE