Experimental investigation of a 90 degree cascade diffusing bend with an area ratio of 1.45:1 and with several inlet boundary layers

Daniel Friedman, Willard R. Westphal
naca-tn-2668
Apr 1952


An experimental investigation was conducted in order to determine the performance of a 90 degree cascade diffusing bend, with an area ratio of 1.45:1, a 19- by 19-inch inlet, and five inlet boundary layers, varying from an approximate over-all thickness of one-fourth inch and a shape parameter of 1.22 to an approximate over-all thickness of 6 and one-half inches and a shape parameter of 1.67.

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http://naca.central.cranfield.ac.uk/reports/1952/naca-tn-2668.pdf