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There are a total of 1031821 record(s) matching your query.
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Calculated and measured stresses in simple panels subject to intense random acoustic loading including the near noise field of a turbojet engine
Author(s): Lassiter, Leslie W; Hess, Robert W
Abstract: Flat 2024-t3 aluminum panels measuring 11 inches by 13 inches were tested in the near noise fields of a 4-inch air jet and turbojet engine. The stresses which were developed in the panels are compared with those calculated ...
NASA Center: Langley Research Center
Publication Year: 1958
Added to NTRS: 2009-01-14
Accession Number: 93R21642; Document ID: 19930092352; Report Number: NACA-TR-1367
Critical stress of ring-stiffened cylinders in torsion
Author(s): Stein, Manuel; Snaders, J Lyell, Jr; Crate, Harold
Abstract: A chart in terms of nondimensional parameters is presented for the theoretical critical stress in torsion of simply supported cylinders stiffened by identical equally spaced rings of zero torsional stiffness. The results are ...
NASA Center: Langley Research Center
Publication Year: 1950
Added to NTRS: 2009-01-14
Accession Number: 93R20372; Document ID: 19930091082; Report Number: NACA-TR-989
On the Kernel function of the integral equation relating lift and downwash distributions of oscillating wings in supersonic flow
Author(s): Watkins, Charles E; Berman, Julian H
Abstract: This report treats the Kernel function of the integral equation that relates a known or prescribed downwash distribution to an unknown lift distribution for harmonically oscillating wings in supersonic flow. The treatment is ...
NASA Center: Langley Research Center
Publication Year: 1956
Added to NTRS: 2009-01-14
Accession Number: 93R21548; Document ID: 19930092258; Report Number: NACA-TR-1257
Measurements of average heat-transfer and friction coefficients for subsonic flow of air in smooth tubes at high surface and fluid temperatures
Author(s): Humble, Leroy V; Lowdermilk, Warren H; Desmon, Leland G
Abstract: An investigation of forced-convection heat transfer and associated pressure drops was conducted with air flowing through smooth tubes for an over-all range of surface temperature from 535 degrees to 3050 degrees r, inlet-air ...
NASA Center: Glenn Research Center
Publication Year: 1951
Added to NTRS: 2009-01-14
Accession Number: 93R21365; Document ID: 19930092075; Report Number: NACA-TR-1020
Arrangement of fusiform bodies to reduce the wave drag at supersonic speeds
Author(s): Friedman, Morris D; Cohn, Doris
Abstract: By means of linearized-body theory and reverse-flow theorems, the wave drag of a system of fusiform bodies at zero angle of attack and supersonic speeds is studied to determine the effect of varying the relative location of ...
NASA Center: Ames Research Center
Publication Year: 1955
Added to NTRS: 2009-01-14
Accession Number: 93R20283; Document ID: 19930090993; Report Number: NACA-TR-1236
Horizontal tail loads in maneuvering flight
Author(s): Pearson, Henry A; Mcgowan, William A; Donegan, James J
Abstract: A method is given for determining the horizontal tail loads in maneuvering flight. The method is based upon the assignment of a load-factor variation with time and the determination of a minimum time to reach peak load ...
NASA Center: Langley Research Center
Publication Year: 1951
Added to NTRS: 2009-01-14
Accession Number: 93R21354; Document ID: 19930092064; Report Number: NACA-TR-1007
Behavior of materials under conditions of thermal stress
Author(s): Manson, S S
Abstract: A review is presented of available information on the behavior of brittle and ductile materials under conditions of thermal stress and thermal shock. For brittle materials, a simple formula relating physical properties to ...
NASA Center: Glenn Research Center
Publication Year: 1954
Added to NTRS: 2009-01-14
Accession Number: 93R21487; Document ID: 19930092197; Report Number: NACA-TR-1170
Origin and prevention of crash fires in turbojet aircraft
Author(s): Pinkel, I Irvin; Weiss, Solomon; Preston, G Merritt; Pesman, Gerard J
Abstract: The tendency for the jet engine rotor to continue to rotate after crash presents the probability that crash-spilled combustibles suspended in the air or puddled on the ground at the engine inlet may be sucked into the ...
NASA Center: Glenn Research Center
Publication Year: 1958
Added to NTRS: 2009-01-14
Accession Number: 93R21637; Document ID: 19930092347; Report Number: NACA-TR-1363
Similar solutions for the compressible laminar boundary layer with heat transfer and pressure gradient
Author(s): Cohen, Clarence B; Reshotko, Eli
Abstract: Stewartson's transformation is applied to the laminar compressible boundary-layer equations and the requirement of similarity is introduced, resulting in a set of ordinary nonlinear differential equations previously quoted ...
NASA Center: Glenn Research Center
Publication Year: 1956
Added to NTRS: 2009-01-14
Accession Number: 93R21579; Document ID: 19930092289; Report Number: NACA-TR-1293
Investigation of turbulent flow in a two-dimensional channel
Author(s): Laufer, John
Abstract: A detailed exploration of the field of mean and fluctuating quantities in a two-dimensional turbulent channel flow is presented. The measurements were repeated at three Reynolds numbers, 12,300, 30,800, and 61,600, based on ...
NASA Center: NASA (non Center Specific)
Publication Year: 1951
Added to NTRS: 2009-01-14
Accession Number: 93R21388; Document ID: 19930092098; Report Number: NACA-TR-1053
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