Design and Evaluation of Cascade Test Facility.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
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A cascade test facility was designed and built. The facility delivers 4.0 lbmsec of air to the test section with turbulence intensities of 2.1 percent. The maximum Reynolds number attainable is 3.24 x 10 to the 6th power per foot. The velocity and turbulence intensity profiles in the flow stream behind the blades were investigated with a hot film anemometer. The fluid turning angle was 30 degrees. The profiles were obtained at ,5, 2, and 4 chord lengths downstream from the trailing edges of Reynolds numbers of 2.34, 2.83, and 2.97 million per foot. The profiles behind the three center blades of the five blade cascade were very closely matched in all tests cases. One major problem in the design, a flow tuning adjustment in the test section, requires redesign otherwise, the facility is adequate for the testing of compressor and turbine cascades. Author
- Test Facilities, Equipment and Methods
- Fluid Mechanics