Technical Report Archive & Image Library (TRAIL) - 1,326 Matching Results

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Observation of Laminar Flow on an Air-Launched 15 Degree Cone-Cylinder at Local Reynolds Numbers to 50 X 10(Exp 6) at Peak Mach Number of 6.75

Description: Report presenting an investigation of a free-flight test vehicle to obtain boundary-layer-transition and heat-transfer data. The model had a 15-degree-included-angle cone-cylinder and a 10 degree conically flared afterbody. Results regarding the free-stream conditions, conditions at outer edge of boundary layer, temperatures and heat-transfer coefficients, and boundary-layer stability conditions are provided.
Date: March 4, 1957
Creator: Rabb, Leonard & Krasnican, Milan J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Possible Test of Time Reversal in Mu-Meson Decay

Description: Report that discusses the possibility of testing the T-invariance in μ-meson decay. The author describes a past experiment performed by Lee and Yang, as well as the specifics of the proposed experiment to test the time reversal in μ-meson decay.
Date: March 4, 1957
Creator: Kotani, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Problem of Slip Flow in Aerodynamics

Description: Memorandum presenting a survey of the present status of theory in the field of slip-flow aerodynamics, which leads to the conclusion that the Navier-Stokes equations of motion together with first-order velocity slip and temperature jump at any boundary are sufficient insofar as experimental confirmation is available.
Date: March 4, 1957
Creator: Street, Robert E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reductions in Temperature-Recovery Factor Associated With Pulsating Flows Generated by Spike-Nosed Cylinders at a Mach Number of 3.50

Description: Report presenting an investigation to determine the reductions in temperature-recovery factor associated with pulsating flows generated by spike-nose cylinders. The investigation was conducted at zero angle of incidence at a free stream Mach number of 3.50 and a free stream Reynolds number of 1.73 million.
Date: March 4, 1957
Creator: Hermach, C. A.; Kraus, Samuel & Reller, John O., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Some Data on Body and Jet Reaction Controls

Description: Report presenting testing of a series of rocket-propelled general-research test missiles incorporating cruciform delta wings mounted along the diagonals of a fuselage of square cross section used to obtain longitudinal trim in flight. Several combinations of controls and static and dynamic longitudinal stability of the missiles were tested at a range of Mach numbers.
Date: March 4, 1957
Creator: Henning, Allen B.; Wineman, Andrew R. & Rainey, Robert W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemical Engineering Division Summary Report October, November, and December, 1956

Description: A final series of runs was made in a four-inch continuous-flow mixing chamber to study the transfer of isobutanol into water and nitrobenzene into ethylene glycol. Satisfactory techniques were developed to provide for the rapid analysis of these systems. In addition, a light-scattering correlation was prepared to provide a measure of the interfacial area of the yellow-colored nitrobenzene-ethylene glycol mixtures.
Date: March 1957
Creator: Lawroski, Stephen; Rodger, W. A.; Vogel, R. C. & Munnecke, V. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Comparison of NACA 65-series compressor-blade pressure distributions and performance in a rotor and in cascade

Description: An investigation has been conducted to compare the performance of NACA 65-series compressor blades in two-dimensional cascade with that in an axial flow compressor. Blade pressure distributions were obtained by the use of a mercury-seal pressure-transfer device. The comparison indicated that cascade data accurately predicted the turning angle and blade pressure distribution obtained in the compressor at design conditions.
Date: March 1957
Creator: Westphal, Willard R. & Godwin, William R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A comparison of typical National Gas Turbine Establishment and NACA axial-flow compressor blade sections in cascade at low speed

Description: Report presenting comparative low-speed cascade tests of the National Gas Turbine Establishment of Great Britain axial-flow compressor blade sections at a range of air-inlet angles and a solidity of 1.0 using the porous wall technique. Results regarding a comparison of performance characteristics of the NGTE and NACA axial-flow compressor blade sections and a comparison of NGTE and NACA low-speed cascade tests of the NGTE 10C4/30C50 section are provided.
Date: March 1957
Creator: Felix, A. Richard & Emery, James C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Conceptual Design of an Advanced Engineering Test Reactor

Description: From abstract: This report describes a conceptual design for an Advanced Engineering Test Reactor. The reactor is a large graphite assembly penetrated by parallel Zircaloy tubes through which flow as heavy water solution of uranyl sulfate. Reactor power is 220 megawatts.
Date: March 1, 1957
Creator: Mallon, R. G.; Saldick, J. & Gibbons, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A correlation of low-speed, airfoil-section stalling characteristics with Reynolds number and airfoil geometry

Description: From Summary: "The low-speed stalling characteristics of a large number of airfoil sections have been correlated with Reynolds number and a single airfoil ordinate near the leading edge as the correlation parameters. The correlation is appropriate only to airfoils without high-lift devices in flows of very low turbulence and with aerodynamically smooth surfaces."
Date: March 1957
Creator: Gault, Donald E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electrical Properties of Sandstones of the Morrison Formation

Description: The following report covers the study of electrical properties of the Morrison formation in the Uravan mineral belt of the Colorado Plateau to determine if there are anomalous variations in these properties in and near zones of uranium-vanadium minerals which might serve as a target for geophysical prospecting.
Date: March 1957
Creator: Keller, George V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The erosion of meteors and high-speed vehicles in the upper atmosphere

Description: From Summary: "A simple inelastic collision model of meteor-atmosphere interaction is used and analytic relations for velocity, deceleration, size, and relative luminous magnitude of meteors are derived and expressed in dimensionless parametric form. The analysis is compared with available quantitative observations of meteor behavior and it is indicated that a large fraction of the atmospheric bombardment energy is used in eroding meteor material. The erosion from large, high-speed vehicles as … more
Date: March 1957
Creator: Hansen, C. Frederick
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental Comparison of Speed: Fuel-Flow and Speed-Area Controls on a Turbojet Engine for Small Step Disturbances

Description: Optimum proportional-plus-integral control settings for speed - fuel-flow control, determined by minimization of integral criteria, correlated well with analytically predicted optimum settings. Engine response data are given for a range of control settings around the optimum. An inherent nonlinearity in the speed-area loop necessitated the use of nonlinear controls. Response data for two such nonlinear control schemes are presented.
Date: March 1957
Creator: Wenzel, L. M.; Hart, C. E. & Craig, R. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental Investigation of Temperature Feedback Control Systems Applicable to Turbojet-Engine Control

Description: Temperature - fuel-flow and temperature-area feedback control systems were investigated as means of controlling tailpipe gas temperature of a turbojet engine during transient operation in the high-speed region. Proportional-plus-integral control was used in both systems, but in the temperature-area control system it was necessary to add nonlinear components to the basic proportional-plus-integral control to provide satisfactory transient response to a desired step increase in temperature. Time … more
Date: March 1957
Creator: Hart, C. E.; Wenzel, L. M. & Craig, R. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental investigation of the forces and moments due to sideslip of a series of triangular vertical- and horizontal-tail combinations at Mach numbers of 1.62, 1.93, and 2.41

Description: Report presenting an experimental investigation at three Mach numbers of a series of tail combinations consisting of a triangular vertical tail attached symmetrically to a triangular horizontal tail to determine the lateral force, yawing moment, and rolling moment due to sideslip. The results indicated that the lateral-force derivative and yawing-moment derivative were predicted satisfactorily with the method used with the exception of when leading edges approach a sonic condition.
Date: March 1957
Creator: Coletti, Donald E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental Investigation of the Oscillating Forces and Moments on a Two-Dimensional Wing Equipped With an Oscillating Circular-Arc Spoiler

Description: Report presenting an experimental investigation in the flutter research tunnel on the oscillating forces and moments on a two-dimensional wing equipped with an oscillating circular-arc spoiler.
Date: March 1957
Creator: Clevenson, Sherman A. & Tomassoni, John E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fast Neutron Cross Sections: Corrections to LA-1714 and a Correlation of 3 Mev Values

Description: Recent measurements on the long counter efficiency in which comparisons were made with the (n, p) scattering cross section, additional variations in efficiency were found which varied slowly with neutron energy but were still correlated with the total neutron cross section of carbon. Because of these variations in efficiency there are errors in the fission cross sections reported in LA-1714. Corrections to these data have been given here.
Date: March 1, 1957
Creator: Henkel, Richard L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Flight tests of a model of a high-wing transport vertical-take-off airplane with tilting wing and propellers and with jet controls at the rear of the fuselage for pitch and yaw control

Description: An investigation of the stability and control of a high-wing transport vertical-take-off airplane with four engines during constant-altitude transitions from hovering to normal forward flight was conducted with a remotely controlled free-flight model. The model had four propellers distributed along the wing with the thrust axes in the wing chord plane. The wing could be rotated to 90 degrees incidence so that the propeller thrust axes were vertical for hovering flight. An air jet at the rear of… more
Date: March 1957
Creator: Lovell, Powell M., Jr. & Parlett, Lysle P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Initial Conditions for the Dynamic Pinch

Description: Abstract: "The experimental formation of the dynamic pinch has been an art based upon available electrical condensers, available glass and quartz tubing and an empirically determined gas pressure range. This report attempts to correlate some of this empirical information with the processes of ionization, insulator wall heating, magnetic field penetration, and shock hydrodynamics."
Date: March 1957
Creator: Colgate, Stirling A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An investigation at low speed of the flow over a simulated flat plate at small angles of attack using pitot-static and hot-wire probes

Description: Report presenting results from pitot-static and hot-wire anemometer surveys at low speed of the flow over a thin, sharp-edge airfoil which simulated a flat plate. The primary purpose was to obtain detailed measurements of the flow associated with the so-called thin-airfoil type of stall. Results regarding the preliminary tests, pressure distributions, mean flow measurements, velocity fluctuation measurements, and observations and measurements of the flow in the immediate vicinity of the leading… more
Date: March 1957
Creator: Gault, Donald E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An Investigation of High-Temperature Vacuum and Hydrogen Furnace Brazing

Description: Note presenting an investigation of the vacuum and hydrogen brazing of four heat-resistant alloys with two types of high-temperature brazing alloy. The effect of time at two brazing temperatures on the 1200 degrees Fahrenheit shear strength of joints and on the base-metal properties was studied. Shear specimens of all four base alloys brazed in hydrogen with box types of brazing alloy exhibited erratic joint coverage by the brazing alloys.
Date: March 1957
Creator: Russell, Walter E. & Wisner, John P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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