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Acoustic radiation from two-dimensional rectangular cutouts in aerodynamic surfaces
From Introduction: "The experiments in high-speed flow showed that an intense, high-frequency acoustic radiation is an essential feature of the problem. Consequently, a study of the acoustic field (involving schlieren observations and frequency and intensity measurements) was undertaken. This report presents the salient features of the study, which was mainly exploratory."
Date:
August 1955
Creator:
Krishnamurty, K.
System:
The UNT Digital Library
Antiknock Effectiveness of Xylidines in Small-Scale Engines
"The data presented in this report are part of a general program to determine the effects of xylidines on the knock-limited performance of currently used aviation fuels" (p. 2).
Date:
August 1943
Creator:
Branstetter, J. Robert & Meyer, Carl L.
System:
The UNT Digital Library
An analysis of the indications of the University of Chicago airborne turbulence indicator in gusty air
From Introduction: "The present report has been prepared to discuss the indications obtained from the University of Chicago turbulence indicator in relation to simultaneous measurement of atmospheric gustiness made by the NACA, which are summarized herein."
Date:
August 1946
Creator:
Tolefson, H. B. & Pratt, K. G.
System:
The UNT Digital Library
Aerodynamic heating of a thin, unswept, untapered, multiweb, aluminum-alloy wing at Mach numbers up to 2.67 as determined from a free-flight investigation of a rocket-propelled model
From Introduction: "The heat-transfer data calculated from measured temperatures are compared with values calculated by the theory of Van Driest for a flat plate with laminar and turbulent boundary layers. In addition, the heat-transfer data from the flight tests are compared with data obtained from the Langley Structures Research Division of ground tests of an identical wing at a Mach number approximately equal to 1.99 in the pre-flight jet of the Langley Pilotless Aircraft Research Station at Wallops Island, Va. The stream static pressure is maintained at about 1 atmosphere, the free-stream temperature at about 75^o F, and the stagnation temperature at approximately 500 ^o F (ref.1)."
Date:
August 6, 1957
Creator:
Strass, H. Kurt & Stephens, Emily W.
System:
The UNT Digital Library
The appearance of a boric oxide exhaust cloud from a turbojet engine operating on trimethylborate fuel
From Summary: "Data are included on the amount of fallout from the cloud and the concentration of boric oxide in the cloud."
Date:
August 10, 1956
Creator:
Lord, Albert M. & Kaufman, Warner B.
System:
The UNT Digital Library
The 6-Foot-4-Inch Wind Tunnel at the Washington Navy Yard
Report discussing the 6-foot-4-inch wind tunnel and its auxiliary equipment has proven itself capable of continuous and reliable output of data. The real value of the tunnel will increase as experience is gained in checking the observed tunnel performance against full-scale performance. Such has been the case of the 8- by 8-foot tunnel, and for that reason the comparison in the calibration tests have been presented.
Date:
August 1935
Creator:
Desmond, G. L. & McCrary, J. A.
System:
The UNT Digital Library