Measurements of the effects of wall outflow and porosity on wave attenuation in a transonic wind tunnel with perforated walls

Joseph M. Spiegel, Phillips J. Tunnell, Warren S. Wilson
naca-tn-4360
Aug 1958


An investigation was made in a 5- by 5-inch transonic test section of the wave attenuating capabilities of a variety of perforated-wall configurations both with and without the use of outflow. The evaluation was made by comparing static-pressure measurements on a body of revolution from tests in a 5- by 5-inch test section with those from tests of the identical model in the Ames 2- by 2-foot transonic wind tunnel.

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