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Dissolution of aluminium oxide as a regulating factor in aqueous aluminum corrosion

Description: The solubility of aluminum corrosion product in contact with metallic aluminum in deionized water has been determined over the range 80 to 350/sup 0/C. Evidence is presented to show that oxide dissolution results in the formation of a porous oxide on aluminum exposed in refreshed dynamic systems. Dynamic corrosion rate data have been analyzed on the basis of parabolic film growth and a linear oxide degradation process acting simultaneously on the system. The degradation process has been shown to be a function of refreshment rate.
Date: August 31, 1959
Creator: Dillon, R.L.
Partner: UNT Libraries Government Documents Department
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Effect of inlet oxygen concentration on combustion efficiency of J33 single combustor operating with gaseous propane

Description: Report presenting an investigation to determine the effect of oxygen concentration of the inlet oxygen-nitrogen mixture on the combustion efficiency of a J33 single combustor operating with gaseous propane fuel. Combustion efficiency data were obtained at a variety of combustion-inlet total pressures, fuel flow rates, and inlet oxygen concentrations. Results regarding combustor data, application of fundamental combustion properties to combustor data, application of simplified reaction kinetics equation to combustor data, comparison of liquid and gaseous fuel data, and limitations of correlation parameters.
Date: March 31, 1953
Creator: Graves, Charles C.
Partner: UNT Libraries Government Documents Department
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Pressure distribution and pressure drag for a hemispherical nose at Mach numbers 2.05, 2.54, and 3.04

Description: Report presenting an experimental investigation of the pressure distributions on a hemispherical nose 3.98 inches in diameter, mounted on a cylindrical support, at several Mach and Reynolds numbers. The Reynolds number was based on body diameter and free-stream conditions. Pressure-drag coefficients were calculated and good agreement was obtained with other testing.
Date: December 31, 1952
Creator: Chauvin, Leo T.
Partner: UNT Libraries Government Documents Department
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The effects of fences on the high-speed longitudinal stability of a swept-wing airplane

Description: Report presenting a series of fence installations tested on a swept-wing jet airplane to determine their effects on the longitudinal instability, or "pitch-up", encountered in high-maneuvering flight. Longitudinal-stability measurements were made at a variety of Mach numbers with nine fence configurations that varied in chordwise extent and spanwise position. Results regarding longitudinal stability, flow phenomena, buffeting and wing dropping, drag, and low-speed stalls are provided.
Date: August 31, 1953
Creator: Bray, Richard S.
Partner: UNT Libraries Government Documents Department
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Investigation of the NACA 1.167-(0)(03)-058 and NACA 1.167-(0)(05)-058 Three-Blade Propellers at Forward Mach Numbers to 0.92 Including Effects of Thrust-Axis Inclination

Description: Report presenting an investigation to determine the aerodynamic characteristics of two three-blade propellers over a range of blade angles and Mach numbers. The thick-blade propeller was more adversely affected by compressibility than the thin-blade propeller, and the maximum efficiency of the thin-blade propeller was higher than the thick-blade propeller.
Date: August 31, 1953
Creator: Demele, Fred A. & Otey, William R.
Partner: UNT Libraries Government Documents Department
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Free-jet performance of 16-inch ram-jet engine with several fuels

Description: Report presenting an investigation of several fuels in a 16-inch ramjet engine during a free-jet investigation of ramjet performance in a wind tunnel. The fuels used were gasoline, kerosene, blend of 50-percent gasoline and 50-percent propylene oxide, blend of 75-percent kerosene and 25-percent propylene oxide, and isopentane. Results regarding ranges of operation, combustion efficiencies, and weight and volume specific fuel consumptions obtained with various fuels.
Date: October 31, 1950
Creator: Wilcox, Fred A.
Partner: UNT Libraries Government Documents Department
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Method for estimating lift interference of wing-body combinations at supersonic speeds

Description: Report presenting the use of the modified slender-body method to predict the lift and moment interference of triangular wing-body combinations to evaluate combinations with non-triangular wings. The method is applied to the prediction of lift-curve slopes of nearly 100 triangular, rectangular, and trapezoidal wing-body configurations.
Date: December 31, 1951
Creator: Nielsen, Jack N. & Kaattari, George E.
Partner: UNT Libraries Government Documents Department
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Investigation of a 1/5-scale model of a proposed high-submerged-speed submarine in the Langley full-scale tunnel

Description: Report presenting the results of an investigation to determine the drag, static stability, control effectiveness, boundary-layer conditions, and first-order effects of propeller operation on a scale model of a proposed high-submerged-speed submarine with various bridge-fairwater and tail configurations.
Date: October 31, 1950
Creator: Lipson, Stanley; Cocke, Bennie W. & Scallion, William I.
Partner: UNT Libraries Government Documents Department
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Application of blade cooling to gas turbines

Description: From Summary: "A review of the status of the knowledge on turbine-blade cooling and a description of pertinent NACA investigations are presented. The current limitations in performance of uncooled and cooled engines are briefly discussed. Finally, the knowledge available and investigations to increase the knowledge on heat transfer, cooling-flow, and performance characteristics of cooled turbines are discussed."
Date: May 31, 1950
Creator: Ellerbrock, Herman H., Jr. & Schafer, Louis J., Jr.
Partner: UNT Libraries Government Documents Department
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Experimental investigation of the effectiveness of various suction-slot arrangements as a means for increasing the maximum lift of the NACA 65(sub 3)-018 airfoil section

Description: Report presenting a wind-tunnel investigation to explore the possibility of employing boundary-layer suction slots as a means for delaying laminar separation at the leading edge and turbulent separation over the rear portions of the airfoil section at high lift coefficients. Results regarding lift and drag are explored.
Date: March 31, 1950
Creator: Racisz, Stanley F.
Partner: UNT Libraries Government Documents Department
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Measurements of average heat-transfer and friction coefficients for subsonic flow of air in smooth tubes at high surface and fluid temperatures

Description: 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 temperature from 535 degrees to 1500 degrees r, Reynolds number up to 500,000, exit Mach number up to 1, heat flux up to 150,000 btu per hour per square foot, length-diameter ratio from 30 to 120, and three entrance configurations. Most of the data are for heat addition to the air; a few results are included for cooling of the air. The over-all range of surface-to-air temperature ratio was from 0.46 to 3.5.
Date: December 31, 1950
Creator: Humble, Leroy V.; Lowdermilk, Warren H. & Desmon, Leland G.
Partner: UNT Libraries Government Documents Department
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Preliminary evaluation of the air and fuel specific-impulse characteristics of several potential ram-jet fuels 4: hydrogen, a-methylnaphthalene, and carbon

Description: A preliminary analytical evaluation of the air and fuel specific-impulse characteristics of hydrogen, a-methylnapthalene, and graphite carbon has been made. Adiabatic constant-pressure combustion flame temperatures for each fuel at several equivalence ratios were calculated for an initial air temperature of 560 degrees R and a pressure of 2 atmospheres.
Date: August 31, 1951
Creator: Gammon, Benson E.
Partner: UNT Libraries Government Documents Department
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The effects of various parameters including Mach number on propeller blade flutter with emphasis on stall flutter

Description: Report presenting an investigation of the effects of many of the parameters significant to wing flutter on several untwisted rotating models to determine their significance with respect to stall flutter of propeller blades. The parameters included torsional stiffness, section thickness ratio, sweepback, length-chord ratio, section center-of-gravity location, blade taper, Mach number, and fluid density. Results regarding the considerations on method of presentation, experimental data and discussion, some possible applications, and a comparison of experiment with classical-flutter theory are provided.
Date: January 31, 1951
Creator: Baker, John E.
Partner: UNT Libraries Government Documents Department
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Quarterly Progress Report on Reactor Development: 4000 program

Description: Report issued by the Argonne National Laboratory discussing progress made on reactor development. Progress made on the core, pressure vessel and shield, and the power plant are presented. This report includes tables, and illustrations.
Date: July 31, 1954
Creator: McLain, Stuart
Partner: UNT Libraries Government Documents Department
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Steady State Temperature Distributions in Hollow Slugs

Description: This document is a sequel to HW-30226, "Steady State Temperature Distribution in a Solid Slug." A primary feature of the present as well as the former paper is a treatment of the stand heat flow equation in a manner which accounts accurately for the dependence of the thermal conductivity, K, on temperature, v.
Date: December 31, 1953
Creator: Anselone, P. M.; Banks, D. O. & Dean, R. Y.
Partner: UNT Libraries Government Documents Department
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Chemical development Separations Technology Unit. Progress report

Description: The Redox Plant operated at a 76.7% time efficiency (IAF basis) and averaged 3.16 tons of uranium per operating day during the month. During the period from July 4 through July 13, 38,000 gallons of 72% ANN from Tygon-lined storage tank SS-112 were used in aqueous salt solution make-ups with some emulsion difficulty and fission-product carry-over resulting. New ANN, from stainless-steel tanks, was used for the balance of the month. An extensive (thermally) hot 60% HNO{sub 3} cleanout was given to the IA, IB, 2D, 3D, 2A, and 3A columns and associated salt solution head tanks to prepare the solvent-extraction battery for operation using 90-day `cooled` uranium. Continuous cross-over oxidation to improve 2A Column waste losses, and employment of KOH (vice NaOH) in 2DS, ICU, and 2EU butt additions to minimize Na in 3EU, were begun concurrently on July 20. Aged (90-day) uranium in head-end treated feed batches, was started to the IA Column on July 21, with early data indicating adequate two-cycle decontamination for both uranium and plutonium.
Date: July 31, 1952
Creator: Woodfield, F.W.
Partner: UNT Libraries Government Documents Department
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P-10-X design features

Description: This document will be used to record the major equipment items and arrangements for purposes of: guidance of the design effort; and information to be used in the preparation of the project proposal. The purpose of the P-10-X project is to increase production of tritium by adding slug storage, can opening, extraction lines, and shipping facilities. Part 1 describes changes to Building 108-B including process equipment, process handling facilities, contamination control, ventilation, air monitoring and air sampling, electrical services, architecture, and piping. Part 2 describes auxiliary facilities which includes facilities for transfer of fuel slugs to ARCO, storage facilities for fuel slugs, and special devices.
Date: October 31, 1950
Creator: Bowman, F.A.
Partner: UNT Libraries Government Documents Department
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Some Variable Contributors to Natural Background

Description: It was suggested that radon concentrations in air and potassium fertilizers on the ground contribute appreciably to natural background radiation levels. The effect on natural background gamma radiation from radon and its associated daughters in equilibrium and from potassium in fertilizers has been calculated and found to be negligible. Background radiation intensities have been assumed to be on the order of 10 [mu]rad/hr.
Date: March 31, 1958
Creator: O'Brien, Keran
Partner: UNT Libraries Government Documents Department
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Strength Properties of Joint Designs for Joining Tubes to Tube Sheets

Description: This report describes the results of a study to determine the mechanical properties of joining stainless steel tubes to stainless steel tube sheets and evaluating the joint types made by various combinations of rolling and welding.
Date: July 31, 1953
Creator: General Electric Company
Partner: UNT Libraries Government Documents Department
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The Synthetic Liquid Fuel Potential of Alaska survey area

Description: Report documenting the suitability of Alaska for plant locations to produce synthetic liquid fuels, based on raw materials such as coal and natural gas.
Date: October 31, 1950
Creator: Ford, Bacon, and Davis
Partner: UNT Libraries Government Documents Department
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The Synthetic Liquid Fuel Potential of New Mexico

Description: Report documenting the suitability of New Mexico for plant locations to produce synthetic liquid fuels, based on raw materials, water sources, and local interest
Date: October 31, 1951
Creator: Ford, Bacon, and Davis
Partner: UNT Libraries Government Documents Department
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The Synthetic Liquid Fuel Potential of Montana

Description: Report documenting the suitability of Montana for plant locations to produce synthetic liquid fuels, based on raw materials, water sources, and local interest
Date: October 31, 1951
Creator: Ford, Bacon, and Davis
Partner: UNT Libraries Government Documents Department
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