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  Partner: UNT Libraries Government Documents Department
 Collection: Technical Report Archive and Image Library
Reaction of Glass During Gamma Irradiation in a Saturated Tuff Environment, Part 3: Long-Term Experiments at 1x10^4 Rad/Hour
Report on experiments to assess the importance of radiation effects on waste glass corrosion. This third part contains a description of the experiments, results, and discussion, with conclusions and related appendices. digital.library.unt.edu/ark:/67531/metadc282864/
The Theory of a Free Jet of a Compressible Gas
In the present report the theory of free turbulence propagation and the boundary layer theory are developed for a plane-parallel free stream of a compressible fluid. In constructing the theory use was made of the turbulence hypothesis by Taylor (transport of vorticity) which gives best agreement with test results for problems involving heat transfer in free jets. digital.library.unt.edu/ark:/67531/metadc64427/
Theoretical Investigation of the Performance of Proportional Navigation Guidance Systems-effect of Method of Positioning the Radar Antenna on the Speed of Response
Proportional navigation guidance systems - radar antenna positioning effects on speed of response. digital.library.unt.edu/ark:/67531/metadc52867/
Theoretical investigation of the performance of proportional navigation guidance systems : effect of method of positioning the radar antenna on the speed of response
No Description digital.library.unt.edu/ark:/67531/metadc59356/
Theoretical investigation of the performance of proportional navigation guidance systems : effect of missile configuration on the speed of response
No Description digital.library.unt.edu/ark:/67531/metadc64700/
The effect of stick-force gradient and stick gearing on the tracking accuracy of a fighter airplane
No Description digital.library.unt.edu/ark:/67531/metadc60967/
Investigation of the use of a stick force proportional to pitching acceleration for normal-acceleration warning
No Description digital.library.unt.edu/ark:/67531/metadc59608/
Theoretical Investigation of the Effects of the Artificial-Feel System on the Maneuvering Characteristics of the F-89 Airplane
The possibility of overshooting the anticipated normal acceleration as a result of the artificial-feel characteristics of the F-89C airplane at a condition of minimum static stability was investigated analytically by means of an electronic simulator. Several methods of improving the stick-force characteristics were studied. It is shown that, due to the lag in build-up of the portion of the stick force introduced by the bobweight, it would be possible for excessive overshoots of normal acceleration to occur in abrupt maneuvers with reasonable assumed control movements. The addition of a transient stick force proportional to pitching acceleration (which leads the normal acceleration) to prevent this occurring would not be practical due to the introduction of an oscillatory mode to the stick-position response. A device to introduce a viscous damping force would Improve the stick-force characteristics so that normal acceleration overshoots would not be likely, and the variation of the maximum stick force in rapid pulse-type maneuvers with duration of the maneuver then would have a favorable trend. digital.library.unt.edu/ark:/67531/metadc65491/
Handbook of Mathematical Functions With Formulas, Graphs, and Mathematical Tables
No Description digital.library.unt.edu/ark:/67531/metadc40302/
Handbook of Mathematical Functions With Formulas, Graphs, and Mathematical Tables
No Description digital.library.unt.edu/ark:/67531/metadc40301/
Sodium Waste Technology : a Summary Report
The Sodium Waste Technology (SWT) Program was established to resolve long-standing issues regarding disposal of sodium-bearing waste and equipment. Comprehensive SWT research programs investigated a variety of approaches for either removing sodium from sodium-bearing items, or disposal of items containing sodium residuals. The most successful of these programs was the design, test, and the production operation of the Sodium Process Demonstration Facility at ANL-W. The technology used was a series of melt-drain-evaporate operations to remove nonradioactive sodium from sodium-bearing items and then converting the sodium to storable compounds. digital.library.unt.edu/ark:/67531/metadc282805/
Investigation of internal film cooling of exhaust nozzle of a 1000-pound-thrust liquid-ammonia liquid-oxygen rocket
No Description digital.library.unt.edu/ark:/67531/metadc59313/
Variation in the number of revolutions of air propellers
No Description digital.library.unt.edu/ark:/67531/metadc53827/
Natural icing of an axial-flow turbojet engine in flight for a single icing condition
No Description digital.library.unt.edu/ark:/67531/metadc53462/
Preliminary results of natural icing of an axial-flow turbojet engine
No Description digital.library.unt.edu/ark:/67531/metadc53464/
Flight investigation of a liquid hydrogen fuel system
No Description digital.library.unt.edu/ark:/67531/metadc53242/
Preliminary results of natural icing of an axial-flow turbojet engine
No Description digital.library.unt.edu/ark:/67531/metadc57582/
Comparison of flight performance of AN-F-58 and AN-F-32 fuels in J35 turbojet engine
No Description digital.library.unt.edu/ark:/67531/metadc57982/
Effects of inlet icing on performance of axial-flow turbojet engine in natural icing conditions
A flight investigation in natural icing conditions was conducted to determine the effect of inlet ice formations on the performance of axial-flow turbojet engines. The results are presented for icing conditions ranging from a liquid-water content of 0.1 to 0.9 gram per cubic meter and water-droplet size from 10 to 27 microns at ambient-air temperature from 13 to 26 degrees F. The data show time histories of jet thrust, air flow, tail-pipe temperature, compressor efficiency, and icing parameters for each icing encounter. The effect of inlet-guide-vane icing was isolated and shown to account for approximately one-half the total reduction in performance caused by inlet icing. digital.library.unt.edu/ark:/67531/metadc58470/
Flight Comparison of Performance and Cooling Characteristics of Exhaust-Ejector Installation with Exhaust-Collector-Ring Installation
Flight and ground investigations have been made to compare an exhaust-ejector installation with a standard exhaust-collector-ring installation on air-cooled aircraft engines in a twin-engine airplane. The ground investigation allowed that, whereas the standard engine would have overheated above 600 horsepower, the engine with exhaust ejectors cooled at take-off operating conditions at zero ram. The exhaust ejectors provided as much cooling with cowl flaps closed as the conventional cowl flaps induced when full open at low airspeeds. The propulsive thrust of the exhaust-ejector installation was calculated to be slightly less than the thrust of the collector-ring-installation. digital.library.unt.edu/ark:/67531/metadc63773/
Accelerations in fighter-airplane crashes
No Description digital.library.unt.edu/ark:/67531/metadc63594/
Air forces on airfoils moving faster than sound
We are undertaking the task of computing the air forces on a slightly cambered airfoil in the absence of friction and with an infinite aspect ratio. We also assume in advance that the leading edge is very sharp and that its tangent lies in the direction of motion. digital.library.unt.edu/ark:/67531/metadc59216/
Drag measurements of two thin wing sections at different index values
It is stated that the index value 6000, as found in normal tests of wing sections with a 20 cm chord, falls in the same region where the transition of laminar to turbulent flow takes place on thin flat plates. It is to be expected that slightly cambered, thin wing sections will behave similarly. The following test of two such wing sections were made for the purpose of verifying this supposition. digital.library.unt.edu/ark:/67531/metadc65241/
Experiments on airfoils with trailing edge cut away
Airfoils with their trailing edge cut away are often found on aircraft, as the fins on the hulls of flying boats and the central section of the wings for affording better visibility. It was therefore of some interest to discover the effect of such cutaways on the lift and drag and on the position of the center of pressure. For this purpose, systematic experiments were performed on two different airfoils, a symmetrical airfoil and an airfoil of medium thickness, with successive shortenings of their chords. digital.library.unt.edu/ark:/67531/metadc65246/
High-speed wind tunnels
Wind tunnel construction and design is discussed especially in relation to subsonic and supersonic speeds. Reynolds Numbers and the theory of compressible flows are also taken into consideration in designing new tunnels. digital.library.unt.edu/ark:/67531/metadc63396/
Present and future problems of airplane propulsion
Some of the problems considered in this report include: thermodynamics of surface friction, application of thick wing sections, special applications of controllable propellers, and gas turbines for aircraft. digital.library.unt.edu/ark:/67531/metadc63144/
Recent experiments at the Gottingen Aerodynamic Institute
This report presents the results of various experiments carried out at the Gottingen Aerodynamic Institute. These include: experiments with Joukowski wing profiles; experiments on an airplane model with a built-in motor and functioning propeller; and the rotating cylinder (Magnus Effect). digital.library.unt.edu/ark:/67531/metadc59236/
Removing boundary layer by suction
Through the utilization of the "Magnus effect" on the Flettner rotor ship, the attention of the public has been directed to the underlying physical principle. It has been found that the Prandtl boundary-layer theory furnishes a satisfactory explanation of the observed phenomena. The present article deals with the prevention of this separation or detachment of the flow by drawing the boundary layer into the inside of a body through a slot or slots in its surface. digital.library.unt.edu/ark:/67531/metadc65203/
Experimental and Theoretical Investigations of Cavitation in Water
The cavitation in nozzles on airfoils of various shape and on a sphere are experimentally investigated. The limits of cavitation and the extension of the zone of the bubbles in different stages of cavitation are photographically established. The pressure in the bubble area is constant and very low, jumping to high values at the end of the area. The analogy with the gas compression shock is adduced and discussed. The collapse of the bubbles under compression shock produces very high pressures internally, which must be contributory factors to corrosion. The pressure required for purely mechanical corrosion is also discussed. digital.library.unt.edu/ark:/67531/metadc64497/
Aerodynamic Heat-Power Engine Operating on a Closed Cycle
Hot-air engines with dynamic compressors and turbines offer new prospects of success through utilization of units of high efficiencies and through the employment of modern materials of great strength at high temperature. Particular consideration is given to an aerodynamic prime mover operating on a closed circuit and heated externally. Increase of the pressure level of the circulating air permits a great increase of limit load of the unit. This also affords a possibility of regulation for which the internal efficiency of the unit changes but slightly. The effect of pressure and temperature losses is investigated. A general discussion is given of the experimental installation operating at the Escher Wyss plant in Zurich for a considerable time at high temperatures. digital.library.unt.edu/ark:/67531/metadc63985/
Investigations of Compression Shocks and Boundary Layers in Gases Moving at High Speed
The mutual influences of compression shocks and friction boundary layers were investigated by means of high speed wind tunnels.Schlieren optics provided a clear picture of the flow phenomena and were used for determining the location of the compression shocks, measurement of shock angles, and also for Mach angles. Pressure measurement and humidity measurements were also taken into consideration.Results along with a mathematical model are described. digital.library.unt.edu/ark:/67531/metadc63820/
Experiments with an airfoil from which the boundary layer is removed by suction
Our attempts to improve the properties of airfoils by removing the boundary layer by suction, go back to 1922. The object of the suction is chiefly to prevent the detachment of the boundary layer from the surface of the airfoil. At large angles of attack, such detachment prevents the attainment of the great lift promised by the theory, besides greatly increasing the drag, especially of thick airfoils. This report gives results of those experiments. digital.library.unt.edu/ark:/67531/metadc65081/
Investigations on wings with and without sweepback at high subsonic speeds
Drag tests at zero lift have been made at Mach numbers from 0.7 to approximately 0.95 in the high speed wind tunnel of the Institute of Aerodynamics, ETH, Zurich, on a group of untapered wings of aspect ratio 3.25, having sweep angles of 0 degree and 35 degrees. For each sweep angle, a series of geometrically similar models was tested at a constant Reynolds number to provide a verification of computed tunnel blocking corrections. Tests were also made for wings having thickness ratios of 0.09 and 0.12 and the results compared with results predicted by von Karman's similarity law. digital.library.unt.edu/ark:/67531/metadc62971/
Advanced Fuel Cell Development Progress Report: April-June 1983
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts on development of molten carbonate fuel cells directed toward seeking alternative cathode materials to NiO. Based on an investigation of the thermodynamically stable phases formed under cathode conditions with a number of transition metal oxides, synthesis of prospective alternative cathode materials and doping of these materials to promote electronic conductivity is under way. digital.library.unt.edu/ark:/67531/metadc283367/
Advanced Fuel Cell Development Progress Report: January-March 1978
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes the development of electrolyte structures which have good electrolyte retention and mechanical properties as well as long term stability, and on developing methods of synthesis amenable to mass production. digital.library.unt.edu/ark:/67531/metadc303744/
Advanced Fuel Cell Development Progress Report: October-December 1977
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes work aimed at understanding and improving the performance of fuel cells having molten alkali-carbonate mixtures as electrolytes; the fuel cells operate at temperatures near 925 K. digital.library.unt.edu/ark:/67531/metadc283607/
Advanced Fuel Cell Development Progress Report: April-June 1977
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes activities directed toward understanding and improvement of molten-carbonate-electrolyte fuel cells operating at temperatures near 923 Kelvin. digital.library.unt.edu/ark:/67531/metadc283224/
Advanced Fuel Cell Development Progress Report: July-September 1977
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). digital.library.unt.edu/ark:/67531/metadc283258/
Advanced Fuel Cell Development Progress Report: July-September 1983
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes activities seeking alternative cathode materials to NiO for molten carbonate fuel cells. digital.library.unt.edu/ark:/67531/metadc173304/
Advanced Fuel Cell Development Progress Report: July-September 1984
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes studies directed toward seeking alternative cathode materials to NiO for molten carbonate fuel cells. digital.library.unt.edu/ark:/67531/metadc282730/
Advanced Fuel Cell Development Progress Report: October-December 1983
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes activities directed toward seeking alternative cathode materials to NiO for molten carbonate fuel cells. digital.library.unt.edu/ark:/67531/metadc173318/
Advanced Fuel Cell Development Progress Report: April-June 1978
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward understanding and improving the components of molten-carbonate-electrolyte fuel cells operated at temperatures near 925 K. digital.library.unt.edu/ark:/67531/metadc303820/
Advanced Fuel Cell Development Progress Report: July-September 1978
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes activities focuses on the development of electrolyte structures that have good electrolyte retention and mechanical properties as well as long term stability, and on developing methods of synthesis amenable to mass production. digital.library.unt.edu/ark:/67531/metadc303843/
A Calibration Service for 30 MHz Attenuation and Phase Shift
Definitions, capabilities of the calibration system and techniques of calibration are presented. digital.library.unt.edu/ark:/67531/metadc100701/
Flight measurements of the effect of various amounts of aileron droop on the low-speed lateral-control characteristics of an observation airplane
No Description digital.library.unt.edu/ark:/67531/metadc279604/
Flight measurements of the effects of a wing leading-edge slot and other modifications on the stability, maximum lift, and high speed of an observation airplane
No Description digital.library.unt.edu/ark:/67531/metadc62501/
SYN3D: a Single-Channel, Spatial Flux Synthesis Code for Diffusion Theory Calculations
This report is a user's manual for SYN3D, a computer code which uses single-channel, spatial flux synthesis to calculate approximate solutions to two- and three-dimensional, finite-difference, multi-group neutron diffusion theory equations. SYN3D is designed to run in conjunction with any one of several one- and two-dimensional, finite-difference codes (required to generate the synthesis expansion functions) currently being used in the fast reactor community. The report describes the theory and equations, the use of the code, and the implementation on the IBM 370/195 and CDC 7600 of the version of SYN3D available through the Argonne Code Center. digital.library.unt.edu/ark:/67531/metadc282667/
The Utility Subroutine Package Used by Applied Physics Division Export Codes
This report describes the current state of the utility subroutine package used with codes being developed by the staff of the Applied Physics Division. The package provides a variety of useful functions for BCD input processing, dynamic core-storage allocation and management, binary I/O and data manipulation. The routines were written to conform to coding standards which facilitate the exchange of programs between different computers. digital.library.unt.edu/ark:/67531/metadc283572/
Solidification and Separation of Ice From Saline Water
No Description digital.library.unt.edu/ark:/67531/metadc11646/
Theoretical damping in roll and rolling moment due to differential wing incidence for slender cruciform wings and wing-body combinations
A method of analysis based on slender-wing theory is developed to investigate the characteristics in roll of slender cruciform wings and wing-body combinations. The method makes use of the conformal mapping processes of classical hydrodynamics which transform the region outside a circle and the region outside an arbitrary arrangement of line segments intersecting at the origin. The method of analysis may be utilized to solve other slender cruciform wing-body problems involving arbitrarily assigned boundary conditions. (author). digital.library.unt.edu/ark:/67531/metadc65675/