Resource Type
Serial/Series Title
GJBX
178
United States Department of Energy Grand Junction Office Reports
147
Atomic Energy Commission Reports
110
NACA Research Memorandums
50
AEC research and development report
20
NACA Technical Reports
14
Oak Ridge National Laboratory Reports
12
University of California Radiation Laboratory Reports
11
BMI (Series)
10
Battelle Memorial Institute Reports
10
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403 Matching Results
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A method of analysis of V-G records from transport operations
A method has been developed for interpreting v-g records taken during the course of commercial transport operation. This method involves the utilization of fairly simple statistical procedures to obtain "flight envelopes," which predict that, on the average, in a stated number of flight hours, one value of airspeed will exceed the envelope, and one positive and one negative acceleration increment will exceed the envelope with equal probability of being experienced at any airspeed. Comparison with the actual data obtained from various airplanes and from various airlines indicates that these envelopes predict the occurrences of large values of acceleration and airspeed with a high degree of accuracy.
Date:
August 31, 1945
Creator:
Peiser, A. M. & Wilkerson, M.
Object Type:
Report
System:
The UNT Digital Library
Effect of inlet oxygen concentration on combustion efficiency of J33 single combustor operating with gaseous propane
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.
Object Type:
Report
System:
The UNT Digital Library
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
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.
Object Type:
Report
System:
The UNT Digital Library
The effects of fences on the high-speed longitudinal stability of a swept-wing airplane
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.
Object Type:
Report
System:
The UNT Digital Library
Correlation of cylinder-head temperatures and coolant heat rejections of a multicylinder, liquid-cooled engine of 1710-cubic-inch displacement
"Data obtained from an extensive investigation of the cooling characteristics of four multicylinder, liquid-cooled engines have been analyzed and a correlation of both the cylinder-head temperatures and the coolant heat rejections with the primary engine and coolant variables was obtained. The method of correlation was previously developed by the NACA from an analysis of the cooling processes involved in a liquid-cooled-engine cylinder and is based on the theory of nonboiling, forced-convection heat transfer. The data correlated included engine power outputs from 275 to 1860 brake horsepower; coolant flows from 50 to 320 gallons per minute; coolants varying in composition from 100 percent water to 97 percent ethylene glycol and 3 percent water; and ranges of engine speed, manifold pressure, carburetor-air temperature, fuel-air ratio, exhaust-gas pressure, ignition timing, and coolant temperature" (p. 207).
Date:
August 31, 1948
Creator:
Lundin, Bruce T.; Povolny, John H. & Chelko, Louis J.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Jet-Propulsion-Engine Combustion-Chamber Pressure Losses
From Summary: "The development and the use of a chart for estimating the pressure losses in jet-engine combustion chambers are described. By means of the chart, the pressure losses due to fluid friction and to momentum changes in the air flow accompanying combustion can be separately evaluated. The over-all pressure losses computed from the pressure-loss chart are within 7 percent of the experimental values for the three types of combustion chambers considered herein."
Date:
July 31, 1946
Creator:
Pinkel, I. Irving & Shames, Harold
Object Type:
Report
System:
The UNT Digital Library
Factors That Affect Operational Reliability of Turbojet Engines
The problem of improving operational reliability of turbojet engines is studied in a series of papers. Failure statistics for this engine are presented, the theory and experimental evidence on how engine failures occur are described, and the methods available for avoiding failure in operation are discussed. The individual papers of the series are Objectives, Failure Statistics, Foreign-Object Damage, Compressor Blades, Combustor Assembly, Nozzle Diaphrams, Turbine Buckets, Turbine Disks, Rolling Contact Bearings, Engine Fuel Controls, and Summary Discussion.
Date:
January 31, 1956
Creator:
Lewis Laboratory Staff
Object Type:
Report
System:
The UNT Digital Library
Investigation of Fretting by Microscopic Observation
"An experimental investigation, using microscopic observation and color motion photomicrographs of the action, was conducted to determine the cause of fretting. Glass and other noncorrosive materials, as well as metals, were used as specimens. A very simple apparatus vibrated convex surfaces in contact with stationary flat surfaces at frequencies of 120 cycles or less than l cycle per second, an amplitude of 0.0001 inch, and load of 0.2 pound" (p. 135).
Date:
August 31, 1949
Creator:
Godfrey, Douglas
Object Type:
Report
System:
The UNT Digital Library
Measurements of average heat-transfer and friction coefficients for subsonic flow of air in smooth tubes at high surface and fluid temperatures
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.
Object Type:
Report
System:
The UNT Digital Library
Systematic two-dimensional cascade tests of NACA 65-series compressor blades at low speeds
The performance of NACA 65-series compressor blade section in cascade has been investigated systematically in a low-speed cascade tunnel. Porous test-section side walls and for high-pressure-rise conditions, porous flexible end walls were employed to establish conditions closely simulating two-dimensional flow. Blade sections of design lift coefficients from 0 to 2.7 were tested over the usable angle-of-attack range for various combinations of inlet-flow angle. A sufficient number of combinations were tested to permit interpolation and extrapolation of the data to all conditions within the usual range of application. The results of this investigation indicate a continuous variation of blade-section performance as the major cascade parameters, blade camber, inlet angle, and solidity were varied over the test range. Summary curves of the results have been prepared to enable compressor designers to select the proper blade camber and angle of attack when the compressor velocity diagram and desired solidity have been determined.
Date:
January 31, 1958
Creator:
Emery, James C.; Herrig, L. Joseph; Erwin, John R. & Felix, A. Richard
Object Type:
Report
System:
The UNT Digital Library
A note on secondary flow in rotating radial channels
"A general vector differential equation for the vorticity component parallel to a streamline is derived for steady, nonviscous, and incompressible flow in a rotating system. This equation is then simplified by restricting it to rotating radial channels and by making further simplifying assumptions. The simplified equation is used to solve for the secondary vorticity, the vorticity component parallel to the streamline, in three special cases involving different streamtube geometries; the results are presented in a series of figures" (p. 1).
Date:
August 31, 1953
Creator:
Kramer, James J. & Stanitz, John D.
Object Type:
Report
System:
The UNT Digital Library
Correlation by the Hypersonic Similarity Rule of the Pressure Distributions and Wave Drags for Minimum-Drag Nose Shapes at Zero Angle of Attack
Memorandum presenting the use of the hypersonic similarity rule to correlate pressure distributions and wave drags for minimum-drag nose shapes derived by Von Karman and Newton. The computed results have been confirmed by comparison with available experimental data. Wave-drag results for both the Karman and Newtonian shapes are compared with each other and with results for ocnes and circular-arc tangent ogives.
Date:
August 31, 1953
Creator:
Jorgensen, Leland H.
Object Type:
Report
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Sheridan Quadrangle, Wyoming: Appendix
Data collected as part of a report on the Sheridan Wyoming Quadrangle including laboratory data on waters (pp. 1-22) and sediments (pp. 23-52) as well as field data (pp. 53-115).
Date:
August 31, 1981
Creator:
unknown
Object Type:
Dataset
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Kateel River Quadrangle, Alaska: Appendix
Data collected as part of a report on the Kateel River, Alaska quadrangle including both laboratory data (pp. 1-24) and field data (pp. 25-60).
Date:
August 31, 1981
Creator:
unknown
Object Type:
Dataset
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Aztec Quadrangle, New Mexico: Appendix
Data collected as part of the National Uranium Resource Evaluation (NURE) Program including laboratory data on waters and sediments as well as field data.
Date:
July 31, 1981
Creator:
National Uranium Resource Evaluation Program
Object Type:
Dataset
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Tularosa Quadrangle, New Mexico: Appendix
Data collected as part of hydrogeochemical and stream sediment reconnaissance for the Tularosa quadrangle, New Mexico including laboratory data on waters and sediments as well as field data.
Date:
July 31, 1981
Creator:
National Uranium Resource Evaluation Program
Object Type:
Dataset
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Clifton Quadrangle, New Mexico; Arizona: Appendix
Data collected as part of a report on the Clifton New Mexico quadrangle including laboratory data on waters and sediments as well as field data.
Date:
July 31, 1981
Creator:
National Uranium Resource Evaluation Program
Object Type:
Dataset
System:
The UNT Digital Library
Stream Sediment Detailed Geochemical Survey for Marysvale, Utah: Appendix C
Data collected as part of a report of Marysville, Utah including laboratory data on well water (pp. 1-3) and stream sediments (pp. 4-27) as well as field data (pp. 29-175).
Date:
July 31, 1980
Creator:
Butz, T. R.; Vreeland, J. L.; Bard, C. S.; Helgerson, R. N.; Grimes, J. G. & Pritz, P. M.
Object Type:
Dataset
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Alliance NTMS Quadrangle, Nebraska, South Dakota: Appendix C
Data collected as part of a report on the Alliance Quadrangle in Nebraska and South Dakota including laboratory data on well water and stream sediments as well as field data.
Date:
August 31, 1980
Creator:
unknown
Object Type:
Dataset
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Cheyenne Quadrangle, Wyoming: Appendix
Data collected as part of Cheyenne quadrangle, Wyoming including laboratory data on waters and sediments as well as field data.
Date:
July 31, 1981
Creator:
National Uranium Resource Evaluation Program
Object Type:
Dataset
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Raton Quadrangle, New Mexico: Appendix
Data collected as part of a report on the Raton New Mexico quadrangle including laboratory and field data on waters and sediments.
Date:
August 31, 1981
Creator:
National Uranium Resource Evaluation Program
Object Type:
Dataset
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Ophir Quadrangle, Alaska: Appendix
Data collected as part of hydrogeochemical and stream sediment reconnaissance for Ophir quadrangle, Alaska including laboratory and field data.
Date:
July 31, 1981
Creator:
Los Alamos National Laboratory
Object Type:
Dataset
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Roundup Quadrangle, Montana: Appendix
Data collected as part of a report on the Roundup Quadrangle in Montana including laboratory data on waters (pp. 1-46) and sediments (pp. 47-100) as well as field data (pp. 101-223).
Date:
August 31, 1981
Creator:
unknown
Object Type:
Dataset
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Petersburg Quadrangle, Alaska: Appendix
Data collected as part of a report on the Petersburg Quadrangle including laboratory data (pp. 25-40) as well as field data for waters (pp. 1-24).
Date:
July 31, 1981
Creator:
unknown
Object Type:
Dataset
System:
The UNT Digital Library