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Thermodynamic Charts for Internal-Combustion-Engine Fluids

Description: Note presenting thermodynamic properties of the products of combustion of five different mixtures of air with typical aircraft-engine fuel, which have been calculated from the most reliable thermodynamic data available. The calculations are presented in five charts of internal energy plotted against entropy with values of temperature, specific volume, pressure, and enthalpy indicated corresponding to five different percentages of the fuel-air ratio for perfect combustion.
Date: July 1949
Creator: McCann, W. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Strength and Creep Characteristics of Ceramic Bodies at Elevated Temperatures

Description: Report presenting the results of a total of 109 tests to evaluate certain characteristics of six ceramic oxide bodies for high-temperature applications, especially as turbine blades. The primary emphasis was placed on determinations of strength and resistance to creep under tensile strength at elevated temperatures. Results regarding step tests, short-time tensile tests, stress-rupture test results, modulus of elasticity, correlation of absorption and extension, stress-temperature-time effects,… more
Date: April 1949
Creator: Burdick, M. D.; Moreland, R. E. & Geller, R. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An Investigation of Aircraft Heaters 30: Nocturnal Irradiation as a Function of Altitude and Its Use in Determination of Heat Requirements of Aircraft

Description: Report presenting generalized radiation charts for the calculation of the irradiation from water vapor, carbon dioxide, ozone, and the earth in terms of appropriate parameters. Nocturnal irradiation was found to decrease greatly as a function of altitude and meteorological conditions.
Date: January 1949
Creator: Boelter, L. M. K.; Poppendiek, H.; Young, G. & Andersen, J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of a Two-Step Nozzle in an 11-Inch Hypersonic Tunnel

Description: Report discussing flow surveys made of several nozzles using two 2-dimensional steps at Mach number 6.98. Results regarding wall-pressure surveys, disturbance patterns in expansion, total-pressure survey, temperature recovery, and general nozzle characteristics are provided.
Date: October 25, 1949
Creator: McLellan, Charles H.; Williams, Thomas W. & Bertram, Mitchel H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Heat-transfer and boundary-layer transition on a heated 20 degree cone at a Mach number of 1.53

Description: Heat-transfer data from supersonic wind-tunnel tests of a heated 20 degree cone are compared with theoretical results obtained by the method for determining the convective heat transfer in laminar boundary layers in a compressible fluid developed by Hantzche and Wendt and with the method presented in NACA TN No. 1300. The experimental data are also compared with the results obtained by Eber at the Kochel Laboratory in Germany and it is found that Eber's results correspond to those obtained with… more
Date: January 10, 1949
Creator: Scherrer, Richard; Wimbrow, William R. & Gowen, Forrest E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Heat transfer to bodies traveling at high speed in the upper atmosphere

Description: A general method has been developed, using the methods of kinetic theory, whereby the surface temperatures of bodies can be calculated for steady flight at any speed in a rarefied gas. The particular solution was made for a flat plate; however, the calculations can be easily extended to bodies of arbitrary shape.
Date: 1949
Creator: Stalder, Jackson R. & Jukoff, David
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Influence of chemical composition on rupture properties at 1200 degrees F of forged chromium-cobalt-nickel-iron base alloys in solution-treated and aged condition

Description: From Summary: "The influence of systematic variations of chemical composition on rupture properties at 1200 degrees F. was determined for 62 modifications of a basic alloy containing 20 percent chromium, 20 percent nickel, 20 percent cobalt, 3 percent molybdenum, 2 percent tungsten, 1 percent columbium, 0.15 percent carbon, 1.7 percent manganese, 0.5 percent silicon, 0.12 percent nitrogen and the balance iron. These modifications included individual variations of each of 10 elements present and… more
Date: October 26, 1949
Creator: Reynolds, E. E.; Freeman, J. W. & White, A. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Contributions to the Data on Theoretical Metallurgy: [Part] 10. High-temperature Heat-Content, Heat-Capacity, and Entropy Data for Inorganic Compounds

Description: From Introduction: "This work is both a revision and an elaboration of Bureau of Mines Bulletin 371, which was published in 1934 and included data available to October 1933. This bulletin purposes to collect and correlate all available high-temperature heat-content and specific-heat data for inorganic substances and to formulate tables and algebraic expressions for their representation. It is expected also that this bulletin will have value to those teaching courses in metallurgical and chemica… more
Date: 1949
Creator: Kelley, K. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Heat Transfer from High-Temperature Surfaces to Fluids. 3 - Correlation of Heat-Transfer Data for Air Flowing in Silicon Carbide Tube with Rounded Entrance, Inside Diameter of 3/4 Inch, and Effective Length of 12 Inches

Description: "A heat-transfer investigation was conducted with air flowing through an electrically heated silicon carbide tube with a rounded entrance, an inside diameter of 3/4 inch, and an effective heat-transfer length of 12 inches over a range of Reynolds numbers up to 300,000 and a range of average inside-tube-wall temperature up to 2500 R. The highest corresponding local outside-tube-wall temperature was 3010 R. Correlation of the heat-transfer data using the conventional Nueselt relation wherein phys… more
Date: June 23, 1949
Creator: Sams, Eldon W. & Desmon, Leland G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation of Conditions of Titanium Carbonization - 4

Description: "In a previous paper, results are presented of accurate investigations of the processes of titanium carbonization and the succeeding titanium carbide decarbonization as related to the phenomenon of the graphitization of soot by heating at a constant temperature in atmospheres of pure hydrogen and carbon monoxide. These tests showed that the processes of titanium carbonization-decarbonization in an atmosphere of pure gases without nitrogen proceed in the same direction as the analogous processes… more
Date: July 1949
Creator: Meerson, G. A. & Lipkes, Y. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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