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The Aeolotropic Elastic Relations for Uranium Crystals

Description: Handwritten report. This theoretical introduction to the anisotropic elastic properties of the orthorombic [sic] uranium crystal presents certain basic ideas which are useful in the study of experimental methods for determining preferred orientations in polycrystalline bodies. The method of analysis used to determine the elastic constants suggests explanations and correlations for the observations of sonic wave experiments on bars having preferred orientations and also serves as an introduction… more
Date: December 17, 1954
Creator: Merckx, K. R.
Item Type: Refine your search to only Report
open access

Altitude-wind-tunnel investigation of several afterburner configurations having moderately high burner-inlet velocities

Description: From Introduction: "The screech investigation, reported in reference 1, included a large number of afterburner configurations. Several of these configurations are presented herein to show the effects of afterburner-inlet gas whirl pattern, flame-holder design, and fuel distribution on performance as determined by combustion efficiency, augmented thrust ratio, and special fuel consumption."
Date: November 17, 1954
Creator: Schulze, F. W.; Bloomer, H. E. & Miller, R. R.
Item Type: Refine your search to only Report
open access

Analysis of Turbulent Heat Transfer, Mass Transfer, and Friction in Smooth Tubes at High Prandtl and Schmidt Numbers

Description: From Introduction: "In the analysis given herein, which was made at the NACA Lewis laboratory, the expression for eddy diffusivity given in reference 1 is modified in order to account for the effect of kinematic viscosity in reducing the turbulence in the region close to the wall. The effects of variable viscosity and of length-to-diameter ratio are also investigated."
Date: February 17, 1954
Creator: Deissler, Robert G.
Item Type: Refine your search to only Report
open access

Design and Evaluation of a Turbojet Exhaust Simulator, Utilizing a Solid-Propellant Rocket Motor, for Use in Free-Flight Aerodynamic Research Models

Description: A method has been developed for modifying a rocket motor so that its exhaust characteristics simulate those of a turbojet engine. The analysis necessary to the design is presented along with tests from which the designs are evaluated. Simulation was found to be best if the exhaust characteristics to be duplicated were those of a turbojet engine at high altitudes and with the afterburner operative.
Date: December 17, 1954
Creator: de Moraes, Carlos A.; Hagginbothom, William K., Jr. & Falanga, Ralph A.
Item Type: Refine your search to only Report
open access

Determination of Longitudinal Stability in Supersonic Accelerated Maneuvers for the Douglas D-558-II Research Airplane

Description: Report discussing testing of a Douglas D-558-II to investigate its longitudinal stability characteristics in accelerated flight at supersonic speeds. Information about the normal-force coefficients and their relation to stability and pitch-up of the aircraft is included.
Date: February 17, 1954
Creator: Ankenbruck, Herman O.
Item Type: Refine your search to only Report
open access

Drag and Heat Transfer on a Parabolic Body of Revolution (NACA RM-10) in Free Flight to Mach Number 2 With Both Constant and Varying Reynolds Number and Heating Effects on Turbulent Skin Friction

Description: Report discussing testing on a research model to obtain experimental drag and heat-transfer data under constant and varying conditions of Reynolds number and heating effects. Average body turbulent skin-friction-drag coefficients were determined for both constant and varying heating effect.
Date: June 17, 1954
Creator: Maloney, Joseph P.
Item Type: Refine your search to only Report
open access

Effect of ground interference on the aerodynamic and flow characteristics of a 42 degree sweptback wing at Reynolds numbers up to 6.8 x 10(6)

Description: Report presents the results of an investigation of the effects of ground interference on the aerodynamic characteristics of a 42 degree sweptback wing at distances 0.68 and 0.92 of the mean aerodynamic chord from the simulated ground to the 0.25-chord point of the mean aerodynamic chord. Survey data behind the wing, both with and without the simulated ground, are presented in the form of contour charts of downwash, sidewash, and dynamic-pressure ratio at longitudinal stations of 2.0 and 2.8 mea… more
Date: December 17, 1954
Creator: Furlong, G. Chester & Bollech, Thomas V.
Item Type: Refine your search to only Report
open access

The effect of stick-force gradient and stick gearing on the tracking accuracy of a fighter airplane

Description: Report presenting steady straight-and-level and steady turning tracking runs against an aerial target using an F-51H airplane equipped with a fixed optical sight and with various combinations of maneuvering stick-force and stick-deflection gradients. Results regarding aim wander, elevator movement, and stick-force variation for various test conditions are provided.
Date: December 17, 1954
Creator: Abramovitz, Marvin & Van Dyke, Rudolph D., Jr.
Item Type: Refine your search to only Report
open access

Effectiveness of boundary-layer removal near throat of ramp-type side inlet at free-stream Mach number of 2.0

Description: Report presenting the effect of removal of the boundary layer inside the inlet on the performance of a twin-duct side-air-intake system in the 8- by 6-foot supersonic wind tunnel at a free-stream Mach number of 2.0. Results regarding the internal performance characteristics of inlets, supercritical mass-flow ratio, diffuser total-pressure recovery, and effect of bleeding the boundary layer are provided.
Date: November 17, 1954
Creator: Obery, Leonard J. & Cubbison, Robert W.
Item Type: Refine your search to only Report
open access

Effects of Molecular Weight on Crazing and Tensile Properties of Polymethyl Methacrylate

Description: Memorandum reporting the tensile and crazing properties for five cast polymethy lmethacrylate sheets in which the molecular weight of the resin was 90,000, 120,000, 200,000, 490,000, and 3,160,000. Both stress crazing and stress-solvent crazing tests were conducted. Results regarding the standard tensile tests, stress-solvent crazing tests, and discussion of failure and crazing are provided.
Date: February 17, 1954
Creator: Wolock, I.; Sherman, M. A. & Axilrod, B. M.
Item Type: Refine your search to only Report
open access

Effects of rigid spoilers on the two-dimensional flutter derivatives of airfoils oscillating in pitch at high subsonic speeds

Description: Report presenting a study of the effects of spoilers with fixed heights equal to 2.5 to 4 percent of the airfoil chord on the aerodynamic lift and moment flutter derivatives of oscillating two-dimensional airfoils. Results regarding the typical effects of spoiler deflection, effects of Mach number, and aerodynamic torsional instability boundaries for fixed spoiler heights as affected by airfoil profile are provided.
Date: December 17, 1954
Creator: Monfort, James C. & Wyss, John A.
Item Type: Refine your search to only Report
open access

An Evaluation of the Sulfuric Acid-Sodium Nitrite Etch for Zircaloy-2

Description: Preliminary experiments indicate that there are no significant differences in the corrosion rates of zirconium or Zircaloy-2 after etching with the nitric--hydrofluoric solution or the sulfuric--nitrite solution, provided proper etching and washing techniques are followed. Incomplete removal of the residual etchant is deleterious to the corrosion resistance; however, this effect in the case of the sulfuric--nitrite solution is not as pronounced as in the case of the nitric--hydrofluoric acid so… more
Date: February 17, 1954
Creator: Kass, S.
Item Type: Refine your search to only Report
open access

Final reports on PT 105-551-A and Supplement A, ``High exposure thorium`` and PT 105-516-A, ``Effects of irradiation of thorium slugs``

Description: This report discusses Production Test 105-516-A which was written to determine the stability by both measurement and visual examination, of thorium slugs as used in flattening columns to exposures in excess of 400 MWD/AT. Both rolled and extruded thorium slugs were used; the highest exposures reached were about 1000 MWD/AT. Also discussed is Production Test 105-551-A which was written to demonstrate the stability of thorium slugs as used in flattening columns at exposures up to approximately 15… more
Date: November 17, 1954
Creator: Brugge, R. O.
Item Type: Refine your search to only Report
open access

Flight Investigation of the Aerodynamic Derivatives and Performance of Control Systems of Two Full-Scale Guided Bombs

Description: Report presenting the aerodynamic stability derivatives and pitch and yaw control effectiveness of two full-scale guided bombs over a range of Mach numbers in free-flight drop tests. Results regarding performance information, roll control operation, and aerodynamic characteristics are provided.
Date: June 17, 1954
Creator: Seaberg, Ernest C. & Geller, Edward S.
Item Type: Refine your search to only Report
open access

Flight Investigation to Determine Lift and Drag Characteristics of a Canard Ram-Jet Missile Configuration in the Mach Number Range of 0.8 to 2.0

Description: Report presenting an investigation on a canard ramjet missile configuration to determine its lift and drag characteristics at low values of lift. Two rocket-boosted models that differed only in the size and deflection of the canard were used. Information about the trim lift characteristics, drag, and stability is provided.
Date: June 17, 1954
Creator: Gammal, Abraham A. & Kennedy, Thomas L.
Item Type: Refine your search to only Report
open access

Formation and Combustion of Smoke in Laminar Flames

Description: "The nature and formation of smoke and its combustion were investigated. Smoke, which consist of tiny mesomorphous crystals tightly packed into popcorn-ball-like particles that agglomerate to give filaments, was found to contain about 5 percent of the hydrogen originally present in the fuel. Factors affecting smoke formation were studied in both diffusion flames and premixed Bunsen flames. It is suggested that smoking tendency increases with increasing stability of the carbon skeleton of the mo… more
Date: August 17, 1954
Creator: Schalla, Rose L.; Clark, Thomas P. & McDonald, Glen E.
Item Type: Refine your search to only Report
open access

Hanford Atomic Products Operation monthly report, August 1954

Description: This document presents a summary of work and progress at the Hanford Engineer Works for August 1954. The report is divided into sections by department. A plant wide general summary is included at the beginning of the report, after which the departmental summaries begin. The Manufacturing Department report plant statistics, and summaries for the Metal Preparation, Reactor and Separation sections. The Engineering Department`s section summarizes work for the Technical, Design, and Project Sections… more
Date: September 17, 1954
Item Type: Refine your search to only Report
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