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:

1968-03-01

Pagination or Media Count:

62.0

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 14 in upstream of the exit. A schlieren system showed rapid property changes along the last 14 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 and Valves
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE