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There are a total of 1031821 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
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Effects of compressibility on the performance of two full-scale helicopter rotors
Author(s): Carpenter, Paul J
Abstract: Report presents the results of an investigation conducted on the Langley helicopter test tower to determine experimentally the effects of compressibility on the performance and blade pitching moments of two full-scale ...
NASA Center: Langley Research Center
Publication Year: 1952
Added to NTRS: 2009-01-14
Accession Number: 93R21413; Document ID: 19930092123; Report Number: NACA-TR-1078
Diffusion of heat from a line source in isotropic turbulence
Author(s): Uberoi, Mahinder S; Corrsin, Stanley
Abstract: An experimental and analytical study has been made of some features of the turbulent heat diffusion behind a line heated wire stretched perpendicular to a flowing isotropic turbulence. The mean temperature distributions have ...
NASA Center: NASA (non Center Specific)
Publication Year: 1953
Added to NTRS: 2009-01-14
Accession Number: 93R21461; Document ID: 19930092171; Report Number: NACA-TR-1142
Development of turbulence-measuring equipment
Author(s): Kovasznay, Leslie S G
Abstract: Hot wire turbulence-measuring equipment has been developed to meet the more stringent requirements involved in the measurement of fluctuations in flow parameters at supersonic velocities. The higher mean speed necessitates ...
NASA Center: NASA (non Center Specific)
Publication Year: 1954
Added to NTRS: 2009-01-14
Accession Number: 93R21509; Document ID: 19930092219; Report Number: NACA-TR-1209
Cooperative investigation of relationship between static and fatigue properties of wrought n-155 alloy at elevated temperatures
Abstract: Report presents the correlation of extensive data obtained relating properties of wrought n-155 alloy under static, combined static and dynamic, and complete reversed dynamic stress conditions. Time period for fracture ...
NASA Center: NASA (non Center Specific)
Publication Year: 1956
Added to NTRS: 2009-01-14
Accession Number: 93R21574; Document ID: 19930092284; Report Number: NACA-TR-1288
Nomenclature for Aeronautics
Abstract: This nomenclature for aeronautics was prepared by a special conference on aeronautical nomenclature by the Executive Committee of the National Advisory Committee for Aeronautics at a meeting held August 11, 1933. This ...
NASA Center: NASA (non Center Specific)
Publication Year: 1924
Added to NTRS: 2009-01-14
Accession Number: 93R20829; Document ID: 19930091539; Report Number: NACA-TR-474
Reciprocity relations in aerodynamics
Author(s): Heaslet, Max A; Spreiter, John R
Abstract: Reverse flow theorems in aerodynamics are shown to be based on the same general concepts involved in many reciprocity theorems in the physical sciences. Reciprocal theorems for both steady and unsteady motion are found as a ...
NASA Center: Ames Research Center
Publication Year: 1953
Added to NTRS: 2009-01-14
Accession Number: 93R21445; Document ID: 19930092155; Report Number: NACA-TR-1119
Spacelab user implementation assessment study (software requirements analysis). Volume 1: Executive study
Abstract: The primary objective of this study was to develop an integrated approach for the development, implementation, and utilization of all software that is required to efficiently and cost-effectively support advanced technology ...
NASA Center: NASA (non Center Specific)
Publication Year: 1976
Added to NTRS: 2009-01-14
Accession Number: 76N24339; Document ID: 19760017251; Report Number: NASA-CR-144966-1, SD-76-SA-0028-1
A reevaluaion of data on atmospheric turbulence and airplane gust loads for application in spectral calculations
Author(s): Press, Harry; Meadows, May T; Hadlock, Ivan
Abstract: The available information on the spectrum of atmospheric turbulence is first briefly reviewed. On the basis of these results, methods are developed for the conversion of available gust statistics normally given in terms of ...
NASA Center: Langley Research Center
Publication Year: 1956
Added to NTRS: 2009-01-14
Accession Number: 93R20292; Document ID: 19930091002; Report Number: NACA-TR-1272
Single-degree-of-freedom-flutter calculations for a wing in subsonic potential flow and comparison with an experiment
Author(s): Runyan, Harry L
Abstract: The effect of Mach number and structural damping on single-degree-of-freedom pitching of a wing is presented. Some experimental results are compared with theory and good agreement is found for certain ranges of an inertia ...
NASA Center: Langley Research Center
Publication Year: 1952
Added to NTRS: 2009-01-14
Accession Number: 93R20256; Document ID: 19930090966; Report Number: NACA-TR-1089
An investigation of the effects of heat transfer on boundary-layer transition on a parabolic body of revolution (NACA RM-10) at a Mach number of 1.61
Author(s): Czarnecki, K R; Sinclair, Archibald R
Abstract: Report presents the results of an investigation conducted to determine the effects of heat transfer on boundary-layer transition on a parabolic body of revolution (NACA rm-10 without fins) at Mach number of 1.61 and over a ...
NASA Center: Langley Research Center
Publication Year: 1955
Added to NTRS: 2009-01-14
Accession Number: 93R21535; Document ID: 19930092245; Report Number: NACA-TR-1240
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