Technical Report Archive & Image Library (TRAIL) - 32,509 Matching Results

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Turbojet engine investigation of effect of thermal shock induced by external water-spray cooling on turbine blades of five high-temperature alloys

Description: Report presenting an investigation of the thermal-shock effect of water-spray impingement upon turbine rotor blades subjected to rated engine operating conditions using external water-spray cooling. Turbine-blade cooling water was turned on and off in cycles which employed either sudden or gradual injection of cooling water. Results regarding blades modified and unmodified for rotating injection are provided.
Date: December 19, 1955
Creator: Freche, John C. & Hickel, Robert O.
Partner: UNT Libraries Government Documents Department
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Handling Techniques for Rubidium

Description: Experience in handling and purifying rubidium metal, prior to high-temperature corrosion testing, has been obtained. Some of the physical and chemical properties of this metal are listed. Distillation and filtration experiences are described, and the analysis of samples following such purification procedures are given. Stripping procedures following corrosion testing are discussed briefly. Results of preliminary corrosion experiments indicate that Inconel in a satisfactory container material fo… more
Date: December 18, 1955
Creator: McCoy, H.E., Jr. & Hoffman, E. E.
Partner: UNT Libraries Government Documents Department
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Summary of scale-model thrust-reverser investigation

Description: An investigation was undertaken to determine the characteristics of several basic types of thrust-reverser. Models of three types, target, tailpipe cascade, and ring cascade, were tested with unheated air. The effects of design variables on reverse-thrust performance, reversed-flow boundaries, and thrust modulation characteristics were determined.
Date: December 16, 1955
Creator: Povolny, John H.; Steffen, Fred W. & McArdle, Jack G.
Partner: UNT Libraries Government Documents Department
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The effect of inlet installation on the zero-lift drag of a 60 degree delta-wing-body configuration from flight tests at Mach numbers from 0.8 to 1.86

Description: Report presenting zero-lift drag results for two 60 degree delta-wing configurations with air inlets. One had twin conical-shock semi-circular scoops just ahead of the wing-body juncture and one had a modified wing section over the inboard portion to allow installation of modified triangular inlets in the wing leading edge. Results regarding the drag coefficients and mass-flow ratios are provided.
Date: December 15, 1955
Creator: Merlet, Charles F.
Partner: UNT Libraries Government Documents Department
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Flight Investigation of the Effect of Underwing Propulsive Jets on the Lift, Drag, and Longitudinal Stability of a Delta-Wing Configuration at Mach Numbers From 1.23 to 1.62

Description: Report discussing testing of a multijet 60 degree delta-wing airplane configuration with twin-engine exhausts at specified locations under the wing. Data was obtained for jet-on and jet-off conditions between a range of Mach numbers. Results are presented for the effect of jet on drag, jet effect on lift, static longitudinal stability, and dynamic longitudinal stability.
Date: December 15, 1955
Creator: Falanga, Ralph A. & Judd, Joseph H.
Partner: UNT Libraries Government Documents Department
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Force and Pressure Measurements on Several Canopy-Fuselage Configurations at Mach Numbers 1.41 and 2.01

Description: Memorandum presenting an investigation conducted in the supersonic pressure tunnel on canopy pressures and canopy-fuselage forces and moments under conditions of combined pitch and sideslip. The canopy configurations tested varied in windshield shape, location on the fuselage, and fineness ratio. Results regarding force and moment data, pressure data, and force and pressure correlation are provided.
Date: December 15, 1955
Creator: Robins, A. Warner
Partner: UNT Libraries Government Documents Department
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Force and Pressure Measurements on Several Canopy-Fuselage Configurations at Transonic Mach Numbers 1.41 and 2.01

Description: Report presenting an investigation on canopy pressures and canopy-fuselage forces and moments under conditions of combined pitch and sideslip. The canopy configurations tested varied in windshield shape (flat, vee, and round) and were tested at two Mach numbers and Reynolds numbers.
Date: December 15, 1955
Creator: Robins, A. Warner
Partner: UNT Libraries Government Documents Department
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Lift, drag, and longitudinal stability at Mach numbers from 1.4 to 2.3 of a rocket-powered model having a 52.5 degree sweptback wing of aspect ratio 3 and inline tail surfaces

Description: Report presenting an investigation of a configuration with a body of fineness ratio 16.9, a 52.5 degree sweptback wing of aspect ratio 3, taper ratio 0.2, and NACA 65A004 airfoil section, and an incline tail which was aeropulsed continuously in pitching during free flight with and without a sustainer rocket motor operating. The Mach number range covered was from 1.4 to 2.3. Results regarding drag, total normal force and pitching moment, wing normal-force-curve slope, flow conditions at the hori… more
Date: December 15, 1955
Creator: Gillespie, Warren, Jr.
Partner: UNT Libraries Government Documents Department
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The Origin and Distribution of Supersonic Store Interference From Measurement of Individual Forces on Several Wing-Fuselage-Store Configurations 4. - Delta-Wing Heavy-Bomber Configuration With Large Store. Mach Number, 1.61

Description: Memorandum presenting a supersonic wind-tunnel investigation of the origin and distribution of store interference performed in the 4- by 4-foot supersonic pressure tunnel at a Mach number of 1.6 in which separate forces on a store and on a 60 degree delta-wing-fuselage combination were measured. The configuration in this report simulates a heavy-bomber delta-wing airplane and has a large external symmetrical store that represents a nacelle with a frontal area equivalent to a twin-engine nacelle. more
Date: December 15, 1955
Creator: Morris, Odell A.
Partner: UNT Libraries Government Documents Department
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Bodies of revolution having minimum drag at high supersonic airspeeds

Description: Approximate shapes of nonlifting bodies having minimum pressure foredrag at high supersonic airspeeds are calculated. With the aid of Newton's law of resistance, the investigation is carried out for various combinations of the conditions of given body length, base diameter, surface area, and volume. In general, it is found that when body length is fixed, the body has a blunt nose; whereas, when the length is not fixed, the body has a sharp nose. The additional effect of curvature of the flow ov… more
Date: December 14, 1955
Creator: Eggers, A. J., Jr.; Resnikoff, Meyer M. & Dennis, David H.
Partner: UNT Libraries Government Documents Department
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Solutions of the Reactor Kinetics Equations for Time-Dependent Reactivities

Description: Abstract: The reactor kinetics equations are combined into a single integral equation whose kernel describes the time-dependent characteristics of the reactor including six delayed groups of neutrons. Numerical solutions of the integral equation are given for constant, linear, and ∫sin²kx dx reactivities. An approximate solution of the integral equation is obtained which provides a basis for the formulation and solution of the reactor system control problem using the methods of servomechanisms … more
Date: December 14, 1955
Creator: Ash, Milton S.
Partner: UNT Libraries Government Documents Department
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Biology Progress Report for Period Ending August 15, 1955

Description: Progress report of the Oak Ridge National Laboratory Biology Division providing updates on various projects, experiments, and other work. This report includes a summary of scholarly output from the division and departmental activities in: cytology and genetics, microbial protection and recovery, mammalian recovery, mammalian genetics and development, pathology and physiology, microbiology, biochemistry, enzymology and photosynthesis, plant biochemistry, general physiology, and biophysics.
Date: December 12, 1955
Creator: Hollaender, Alexander; Carson, Stanley F. & Sleughter, E. J.
Partner: UNT Libraries Government Documents Department
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Summary of HAPO Research and Development Program on Ceramic Fuel Materials

Description: The Metallurgy Research Sub-Section at HAPO has conducted a research and development study of a variety of nuclear fuel materials. A summary of the status of the program currently being conducted on ceramic fuel material and a brief discussion of the future program is outlined below.
Date: December 12, 1955
Creator: Sanderson, M. J.
Partner: UNT Libraries Government Documents Department
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Transient Flow of Steam-Water Mixtures

Description: In the analysis of problems involving transient flow and heat transfer in steam-water mixtures, it is necessary to derive an approximate integral equation of motion for a non-ideal compressible fluid in a duct having finite discontinuities in flow geometry. This equation is derived in this document.
Date: December 12, 1955
Creator: Tippets, F. E.
Partner: UNT Libraries Government Documents Department
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An Investigation of Scaling of Zirconium at Elevated Temperatures : Quarterly Status Report No. 10; Sept. 2, 1955 to Dec. 2, 1955

Description: As previously reported, zirconium undergoes large dimensional increases after scaling in air in a critical temperature range, 700 degree-1050 degree C. This finding was observed with specimens of a constant thickness (0;062 in.) To study the thickness effect, a number of specimens ranging in thickness from 0.020 to 0.200 in. were scaled in air at a temperature (900 degree C) where the growth is a maximum for a given time. Both cold rolled iodine sheet and forged iodide bar stock were used. to d… more
Date: December 8, 1955
Creator: Barrett, Charles A.; Evans, E. B. & Baldwin, W. M., Jr.
Partner: UNT Libraries Government Documents Department
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An Analysis of the In-Line Uranium Photometer Data from Purex Hot Semi-Works Runs PX-2 Through PX-9

Description: Results of eight runs using in-line U photometers in organic and aqueous streams of the Purex Hot Semi-Works are presented. Their operation, both mechanically and electrically, was satisfactory, indicating changes in stream U concentrations over wide ranges.
Date: December 7, 1955
Creator: Scott, F. A.
Partner: UNT Libraries Government Documents Department
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Analytic Approach for the Pion-Proton Scattering Phase Shifts

Description: A simple method of solving for the phase shifts of the pion-proton scattering is presented. The rapid solution afforded can be utilized, as the Ashkin diagrams have been employed, to give starting values to an electronic computer or alternatively to analyze with more ease the variation of the phase shifts as a function of the input data in terms of the coefficients of the angular distributions. A new plot of a function of the total cross section versus the pion energy is introduced. The nearly … more
Date: December 7, 1955
Creator: Rarita, William, 1907-
Partner: UNT Libraries Government Documents Department
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Physics Research Quarterly Report: July, August, September 1955

Description: Under the general heading of Reactor Lattices are reported a new method of calculating resonance escape probabilities, results for the effective mass of a proton bound in the water molecule, and a comparison of similar techniques for calculating lattice constants developed independently by Hanford physicists and by a school of Russian physicists (as reported at the Geneva Conference). An estimate of maximum errors in f and η for thermal systems is described. Experiments and analysis thereof on … more
Date: December 7, 1955
Creator: Hanford Atomic Products Operation. Engineering Department. File Technology Section. Physics Research Sub-Section.
Partner: UNT Libraries Government Documents Department
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Purex Plant Small Pulse Generator Operation

Description: Flowsheet considerations and information developed for the large (size 2) Purex pulse generator⁽¹⁾ indicated the need for information on the operating characteristics of the small (size 1) Purex pulse generator.
Date: December 7, 1955
Creator: McCarthy, P. B.
Partner: UNT Libraries Government Documents Department
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