Resource Type
Serial/Series Title
NACA Research Memorandums
322
NACA Technical Notes
157
Atomic Energy Commission Reports
138
United States Geological Survey Reports
100
Trace elements investigations report
75
Hanford Works Reports
56
Oak Ridge National Laboratory Reports
43
University of California Radiation Laboratory Reports
37
HW (Series)
31
NACA Technical Reports
26
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965 Matching Results
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Some Effects of Roughness on Stagnation-Point Heat Transfer at a Mach Number of 2, a Stagnation Temperature of 3,530 F, and a Reynolds Number of 2.5 X 10(Exp 6) Per Foot
Report presenting an investigation to determine some effects of surface roughness on heat transfer at the stagnation point. Testing occurred in the ceramic-heated jet laboratory model at a Mach number of 2, a stagnation temperature of 3,530 degrees Fahrenheit, and a stream Reynolds number of 2.5 x 10(exp 6) per foot. Results regarding the variation of stagnation-point heat-transfer coefficient with surface roughness, heat transfer at the stagnation point of a hemisphere, and heat-transfer coefficient are provided.
Date:
May 26, 1958
Creator:
Strass, H. Kurt & Tyner, Thomas W.
Object Type:
Report
System:
The UNT Digital Library
Theoretical Analysis of the Interference Effects of Several Supersonic Tunnel Walls Capable of Absorbing the Shock Caused by the Nose of a Model
Memorandum presenting a theoretical analysis of the supersonic flow about two-dimensional and three-dimensional axially symmetric models restricted by theoretical walls capable of removing the nose shock. Results regarding the supersonic-tunnel interference due to nonreflecting walls and supersonic-tunnel interference due to porous walls are provided.
Date:
May 26, 1958
Creator:
Matthews, Clarence W.
Object Type:
Report
System:
The UNT Digital Library
Theoretical analysis of the interference effects of several supersonic-tunnel walls capable of absorbing the shock caused by the nose of a model
Report presenting a theoretical analysis of the supersonic flow about two-dimensional and three-dimensional axially symmetric models restricted by theoretical walls capable of removing the nose shock. Results regarding the supersonic-tunnel interference due to nonreflecting walls and supersonic-tunnel interference due to porous walls are provided.
Date:
May 26, 1958
Creator:
Matthews, Clarence W.
Object Type:
Report
System:
The UNT Digital Library
Wind-Tunnel Investigation at a Mach Number of 2.01 of Forebody Strakes for Improving Directional Stability of Supersonic Aircraft
Memorandum presenting an investigation in the 4- by 4-foot supersonic pressure tunnel to determine the effects of forebody strakes on the aerodynamic characteristics in sideslip of a delta-wing airplane model at Mach number of 2.01. The presence of the strakes increased the directional-stability level for both vertical-tail arrangements. Results of pressure tunnels for a forebody show that the presence of the strakes provides a stabilizing influence on the forebody which is consistent with the results of force tests.
Date:
May 26, 1958
Creator:
Driver, Cornelius
Object Type:
Report
System:
The UNT Digital Library
A Bibliography on Factors Effecting the Motion of the Artificial Earth Satellite
"This bibliography is a list of references pertaining to factors affecting the motion of the artificial earth satellite. References are foreign and domestic literature."
Date:
May 20, 1958
Creator:
Frost, Frederick E.
Object Type:
Report
System:
The UNT Digital Library
Investigation of a 0.6 hub-tip radius-ratio transonic turbine designed for secondary-flow study 4: rotor loss patterns as determined by hot-wire anemometers with rotor operating in a circumferentially uniform inlet flow field
Report discussing the use of hot-wire anemometers to measure circumferential traces of specific-mass-flow variation for various radial positions at the rotor exit. Results regarding the rotor blade-wake traces, relative total-pressure ratio, and centrifuging of low-momentum fluid are provided.
Date:
May 20, 1958
Creator:
Kofskey, Milton G. & Allen, Hubert W.
Object Type:
Report
System:
The UNT Digital Library
Investigation of two-stage counterrotating compressor 4: over-all performance of compressor with modified second-stage rotor
Report presenting preliminary tests of a counterrotating axial-flow supersonic compressor, which indicates that a flow limitation in the second rotor restricted the flow rate at design speed. The second-stage rotor was modified by increasing the flow area to increase the flow rate and improve flow stability. Results regarding the overall performance of the modified compressor, radial variation of flow conditions and performance parameters in the second rotor, stability of the shock wave in the second rotor, and individual stage performance are provided.
Date:
May 20, 1958
Creator:
Wilcox, Ward W. & Stevans, William
Object Type:
Report
System:
The UNT Digital Library
Performance at Mach Numbers 3.07, 1.89, and 0 of Inlets Designed for Inlet-Engine Matching Up to Mach 3
Report presenting performance of a two-dimensional external-compression inlet designed for various methods of inlet-engine matching up to Mach 3 at Mach 1.89 and Mach 0. Results regarding shock geometry, two-shock ramps, isentropic ramps, profiles, and cowl drag for the various Mach number tests are provided.
Date:
May 20, 1958
Creator:
Gertsma, L. W. & Beheim, M. A.
Object Type:
Report
System:
The UNT Digital Library
Performance at Mach Numbers 3.07, 1.89, and 0 of Inlets Designed for Inlet-Engine Matching Up to Mach 3
Report presenting the performance of a two-dimensional external-compression inlet designed for various methods of inlet-engine matching up to Mach 3 at Mach 1.89 and Mach 0.
Date:
May 20, 1958
Creator:
Gertsma, L. W. & Beheim, M. A.
Object Type:
Report
System:
The UNT Digital Library
Preliminary geologic map of the Elk Ridge 3 NE quadrangle, San Juan County, Utah
Preliminary geologic map of the Elk Ridge 3 NE quadrangle, San Juan County, Utah
Date:
May 20, 1958
Creator:
Lewis, Richard Quintin & Campbell, Russell H.
Object Type:
Map
System:
The UNT Digital Library
Relation between flow range and other compressor-stage characteristics
Report presenting the development of a method based on blade-element concepts to evaluate the effect of stall or choke-free angle-of-attack range on the attainable pressure rise and relative Mach numbers for cascades or single blade rows. The method was extended to evaluate the effect of usable compressor-stage flow range on the design parameters of the stage flow per unit area, pressure ratio, and rotative speed.
Date:
May 20, 1958
Creator:
Goldstein, Arthur W. & Schacht, Ralph L.
Object Type:
Report
System:
The UNT Digital Library
Theoretical Rocket Performance of Liquid Methane with Several Fluorine-Oxygen Mixtures Assuming Frozen Composition
"Theoretical rocket performance for frozen composition during expansion was calculated for liquid methane with several fluorine-oxygen mixtures for a range of pressure ratios and oxidant-fuel ratios. The parameters included are specific impulse, combustion-chamber temperature, nozzle-exit temperature molecular weight, characteristic velocity, coefficient of thrust, ratio of nozzle-exit area to throat area, specific heat at constant pressure, isentropic exponent, viscosity, and thermal conductivity. The maximum calculated value of specific impulse for a chamber pressure of 600 pounds per square inch absolute (40.827atm) and an exit pressure of 1 atmosphere is 315.3 for 79.67 percent fluorine in the oxidant" (p. 1).
Date:
May 20, 1958
Creator:
Gordon, Sanford & Kastner, Michael E.
Object Type:
Report
System:
The UNT Digital Library
Direct Interaction Neutrons from 14-Mev Inelastic Neutron Scattering
Abstract: "Neutron nonelastic cross sections measured at different detector biases have been used to determine the cross sections for inelastically scattering 14 Mev neutrons into 9- to 14-Mev energy range. The cross section for producing these high energy neutrons, which may be attributed to direct interaction processes, is roughly 10% of the nonelastic cross section, for all elements. A comparison is made with data of Coon and co workers, who measured angular distributions for the same high-energy inelastically scattered-neutron group."
Date:
May 19, 1958
Creator:
MacGregor, Malcolm H.
Object Type:
Report
System:
The UNT Digital Library
Fused Lithium Salts : A Bibliography Covering 1950-57
This is a bibliography referencing documents based on fused lithium salts within the years 1950-57.
Date:
May 19, 1958
Creator:
Baughman, Dorothy & Maynard, G. R.
Object Type:
Report
System:
The UNT Digital Library
Neutron Nonelastic Cross-Section Measurements from 7 to 29 Mev
Abstract: "Neutron nonelastic cross sections have been measured for 23 elements at 14 Mev, and for a selected set of these elements over the energy ranges 7 to 14 Mev and 21 to 29 Mev. Conventional sphere transmission techniques were used for the measurements. A comparison with optical model calculations of Bjorklund and Fernbach shows excellent agreement."
Date:
May 19, 1958
Creator:
MacGregor, Malcolm H.
Object Type:
Report
System:
The UNT Digital Library
Performance of a 28-inch ramjet utilizing gaseous hydrogen at a Mach number of 3.6, angles of attack up to 12 degree, and pressure altitudes up to 110,000 feet
Report presenting an investigation in the 10- by 10-foot supersonic wind tunnel to evaluate the performance of a shrouded injector burner with perforated domes employed in a 28-inch ramjet using gaseous hydrogen as fuel. Steady-state data were obtained at a pressure altitude of 77,000 feet and zero angle of attack. Results indicated that burning could be initiated under severe distortion conditions and that satisfactory combustor operation was accomplished up to a pressure altitude of 110,000 feet with no adverse effect on combustion efficiency.
Date:
May 19, 1958
Creator:
Musial, Norman T.; Ward, James J. & Wasserbauer, Joseph F.
Object Type:
Report
System:
The UNT Digital Library
Performance of a 28-Inch Ramjet Utilizing Gaseous Hydrogen at a Mach Number of 3.6, Angles of Attack Up to 12 Degrees, and Pressure Altitudes Up to 110,000 Feet
Memorandum presenting an investigation conducted in the 10- by 10-foot supersonic wind tunnel to evaluate the performance of a shrouded injector burner with perforated domes employed in a 28-inch ramjet using gaseous hydrogen as fuel. Steady-state data were obtained at a pressure altitude of 77,000 feet and zero angle of attack. Results of the investigation showed that burning could be initiated under severe distortion conditions and that satisfactory combustor operation was accomplished up to a pressure altitude of 110,000 feet with no adverse effect on combustion efficiency.
Date:
May 19, 1958
Creator:
Musial, Norman T.; Ward, James J. & Wasserbauer, Joseph F.
Object Type:
Report
System:
The UNT Digital Library
Analysis of pressure distributions for a series of tip and trailing-edge controls on a 60 deg wing at Mach numbers of 1.61 and 2.01
Report presenting an investigation at Mach numbers of 1.61 and 2.01 to determine the pressure distributions for a series of 20 controls on a 60 degree delta wing. Tests occurred at a range of angles of attack and control deflections. Results regarding basic pressure distributions, comparison of experimental and theoretical results, and experimental comparisons are provided.
Date:
May 16, 1958
Creator:
Lord, Douglas R. & Czarnecki, K. R.
Object Type:
Report
System:
The UNT Digital Library
Analysis of pressure distributions for a series of tip and trailing-edge controls on a 60 degree delta wing at Mach numbers of 1.61 and 2.01
Report presenting an investigation at two Mach numbers to determine the pressure distributions for a series of 20 controls on a 60 degree delta wing. Thirteen controls were of the balanced tip type and seven of the controls were of the more conventional trailing-edge type. Results regarding the basic pressure distributions, comparison of experimental and theoretical results, and some experimental comparisons are provided.
Date:
May 16, 1958
Creator:
Lord, Douglas R. & Czarnecki, K. R.
Object Type:
Report
System:
The UNT Digital Library
Effect of sliding velocity on friction properties and endurance life of bonded lead monoxide coatings at temperatures up to 1250 degrees F
Report presenting studies to determine the effect of sliding velocity and ambient temperature on the friction properties and endurance lift of thin lead monoxide coatings bonded to type 440-C martensitic stainless steel. Results regarding the effect of run-in on endurance life are also provided.
Date:
May 16, 1958
Creator:
Sliney, Harold E.
Object Type:
Report
System:
The UNT Digital Library
Strontium Program: Summary Report for May 1958
Technical report was prepared by the Health and Safety Laboratory (HASL) with the objective of presenting a current picture of the Strontium Program. Abstract: Strontium 90 levels in fallout, milk, canned fish and tap water are summarized for data available up to May 1, 1958. Original data submitted during the month of April are included as an appendix. Data are presented to show the amount of Strontium 90 in fallout at sampling stations within and outside the United States.
Date:
May 16, 1958
Creator:
Hardy, Edward P., Jr.
Object Type:
Report
System:
The UNT Digital Library
Design and Installation of a High Precision Temperature and Intimate Contact Monitor for Experimental Vacuum Chucks
Describes the design criteria, design details, and final installation of a high precision temperature and intimate contact monitor.
Date:
May 15, 1958
Creator:
Morrow, G. W.
Object Type:
Report
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Eau Claire NTMS Quadrangle, Wisconsin; Minnesota
From abstract: Results of a reconnaissance geochemical survey of the Eau Claire Quadrangle, Wisconsin; Minnesota are reported. Field and laboratory data are presented for 565 groundwater samples, 680 stream sediment samples, and 667 stream water samples. Statistical and areal distributions of uranium and other possible uranium-related variables are displayed. A generalized geologic map of the survey area is provided and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed.
Date:
May 15, 1958
Creator:
National Uranium Resource Evaluation Program
Object Type:
Report
System:
The UNT Digital Library
Effects of External Store-Pylon Configuration and Position on the Aerodynamic Characteristics of a 45 Degree Swept Wing-Fuselage Combination at a Mach Number of 1.61
Report presenting an investigation of a pylon-mounted-store airplane configuration in the supersonic pressure tunnel at a Mach number of 1.61. Forces and moments of a complete wing-fuselage-store-pylon combination was measured for a variety of pylon-mounted store locations below the wing. Results regarding the effect of store position on the aerodynamic characteristics in pitch, effect of store position on the aerodynamic characteristics in sideslip, store fins and store tail cone, double-store installation, effect of pylon location, and relative contribution of store-pylon forces toward total force are provided.
Date:
May 13, 1958
Creator:
Morris, Odell A.
Object Type:
Report
System:
The UNT Digital Library