A cascade tunnel for investigation of rotating stall
Author(s)
Kriebel, Anthony R.; Stenning, Alan H. (Alan Hugh)
Download14199740.pdf (6.521Mb)
Alternative title
Stall flutter phenomena in axial flow machines : Terminal report
Other Contributors
Massachusetts Institute of Technology. Gas Turbine Laboratory
Metadata
Show full item recordAbstract
A test apparatus which will reproduce the rotating stall phenomenon found in axial compressors has been constructed and installed in the main wind tunnel circuit of the Gas Turbine Laboratory. The test section consists of a two dimensional, circular, radial outflow cascade between two flat plates. The cascade was designed to reproduce the pressure distribution, and hence the stall characteristics, of a typical rectilinear cascade. The air entry angle to the cascade is controlled by a variable angle nozzle ring so that the cascade may be stalled and unstalled in operation, Provision has been made for removal of wall boundary layers by suction, and for changing the setting of the cascade stagger angle. By a simple modification, the blades may be supported elastically to permit torsional vibrations. Independent variation of the Reynolds number and Mach number of the air stream is possible. Visual observations of the flow using Schlieren and Interferometer equipment can be made through windows in the walls of the test section. In preliminary tests, rotating stall has been observed and the research program will commence in August of 1954.
Description
JUN 1954 --hand-stamped on title-page 'Stall flutter phenomena in axial flow machines' terminal report -- title-page Includes bibliographical references Terminal report; June 1954
Date issued
1954Publisher
Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1954]
Series/Report no.
GTL report #26