Bending Tests on Box Beams Having Solid- and Open-construction Webs
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Johnson, Aldie E , Jr↗
SEARCH · Engineering Papers
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Burning Velocities of Various Premixed Turbulent Propane Flames on Open Burners
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Wagner, Paul↗
A Study of Several Theoretical Methods for Computing the Zero-lift Wave Drag of a Family of Open-nosed Bodies of Revolution in the Mach Number Range of 2.0 to 4.0
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Presley, Leroy L↗
Simulated altitude performance of two annular combustors with continuous axial openings for admission of primary air
Methods of introducing and distributing air and fuel in turbojet-engine combustors were evaluated with two fuels, AN-F-32 and AN-F-58. Investigations were made with two single-annulus liners in a one-quarter sector of a 25 1/2-inch-diameter turbojet combustor. Altitude performance data for these combustors are compared with existing data for a production-model double-annulus combustor. Altitude operating limits and combustion efficiencies of both single-annulus combustors were considerably higher than those of the double-annulus combustor; combustion efficiencies were insensitive to changes in fuel-air ratio.
COMBUSTION - TURBINE ENGINES↗
Low-temperature Ignition-delay Characteristics of Several Rocket Fuels with Mixed Acid in Modified Open-cup-type Apparatus
Summaries of low-temperature self-ignition data of various rocket fuels with mixed acid (nitric plus sulfuric) are presented. Several fuels are shown to have shorter ignition-delay intervals and less variation in delay intervals at moderate and sub-zero temperatures than crude N-ethylaniline (monoethylaniline),a rocket fuel in current use.
Miller, Riley O↗
Error in airspeed measurement due to static pressure field ahead of an open nose air inlet model at transonic speeds
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O'Bryan, Thomas C↗
Ignition-delay Characteristics in Modified Open-cup Apparatus of Several Fuels with Nitric Acid Oxidants Within Temperature Range 70 to 105 Degrees F
Fluid properties and low-temperature ignition delays were obtained for approximately 90 fuel-oxidant combinations. A red fuming nitric acid containing approximately 3 percent water and 19 percent nitrogen tetroxide froze at approximately -87 degrees F and ignited several low-viscosity fuel blends of aromatic amines in triethylamine at -76 degrees F and lower. With this acid, the following average ignition delays were obtained with a blend of 30 percent o-toluidine in triethylamine: ...
FUEL SYSTEMS - ENGINES, ROCKET↗
An Experimental Investigation of the Zero-lift Pressure Distribution over a Wedge Airfoil in Closed, Slotted, and Open-throat Tunnels at Transonic Mach Numbers
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Nelson, William J↗
Ignition-delay Determinations of Furfuryl Alcohol and Mixed Butyl Mercaptans with Various White Fuming Nitric Acids Using Modified Open-cup and Small-scale Rocket Engine Apparatus
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Ladanyi, Dezso J↗
Comparison of Ignition Delays of Several Propellant Combinations Obtained with Modified Open-cup and Small-scale Rocket Engine Apparatus
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Ladanyi, Dezso J↗
An Experimental Investigation of the Transonic-flow-generation and Shock-wave-reflection Characteristics of a Two-dimensional Wind Tunnel with 24-percent-open, Deep, Multislotted Walls
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Sellers, Thomas B↗
Some internal-flow characteristics at zero flight speed of an annular supersonic inlet and an open-nose inlet with sharp and rounded lips
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Milillo, Joseph R↗
An experimental investigation of the transonic-flow-generation and shock-wave-reflection characteristics of a two-dimensional wind tunnel with 17-percent-open perforated walls
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SELLERS THOMAS B↗
High-Speed Drag and Opening Characteristics of a Kaman Rotochute Model
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Lockwood, Vernard E↗
Aerodynamic load measurements and opening characteristics of automatic leading-edge slats on a 45 degree sweptback wing at transonic speeds
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Arabian, Donald D↗
Preliminary investigation of hollow-bladed turbines having closed and open blade tips
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Smith, Gordon T↗
A Study of the Radiation from Laminar and Turbulent Open Propane-air Flames as a Function of Flame Area, Equivalence Ratio, and Fuel Flow Rate
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Clark, Thomas P↗
Effect of Exit-Slot Position and Opening on the Available Cooling Pressure for NACA Nose-Slot Cowlings
Report presents the results of an investigation of full-scale nose-slot cowlings conducted in the NACA 20-foot wind tunnel to furnish information on the pressure drop available for cooling. Engine conductances from 0 to 0.12 and exit-slot conductances from 0 to 0.30 were covered. Two basic nose shapes were tested to determine the effect of the radius of curvature of the nose contour; the nose shape with the smaller radius of curvature gave the higher pressure drop across the engine. The best axial location of the slot for low-speed operation was found to be in the region of maximum negative pressure for the basic shape for the particular operating condition. The effect of the pressure operating condition on the available cooling pressure is shown.
Stickle, George W↗