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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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Study examines scaling parameters of three fluid amplifier elements - a bistable device, a boundary layer control device, and a vortex device. Variations in performance due to size, fluid, and other conditions are studied. Even with restricted examples the large number of variables impedes the establishment of these scaling laws.
RJ-1 fuel surface potential is measured with a probe to determine the degree of hazard originating from static electricity buildup in the hydraulic fluid. The probe is mounted in contact with the fluid surface and connected to an electrostatic voltmeter.
Research and development in multistate fluid logic elements is reviewed in a historical and critical report. The report concludes that in the development of fluid amplifiers, there are elements with very high gain and poor switching speed, and other elements with very high switching speed and poor gain.
Computer program calculates the steady state fluid distribution, temperature rise, and pressure drop of a coolant, the material temperature distribution of a heat generating solid, and the heat flux distributions at the fluid-solid interfaces. It performs the necessary iterations automatically within the computer, in one machine run.
Discharge line fluid conditions in cryogenic container with self-pressurized draining, using Bernoulli, continuity and general energy equations and fluid properties
Effect of selected fluid parameters on spatial drop size distribution - fluorescent method for studying microscopic properties of fluid spray
Synthesizing fluid light modulator using ferromagnetic fluid for transducing electrical signal into corresponding spatial transparency distribution
Three fluid crossflow heat exchangers in terms of temperature effectiveness of two fluids
Solar wind studied with two fluid model, using proton and electron fluid type heat equations, equation of motion and continuity equation
Enzyme and hormonal concentrations in renal lymph fluid, discussing renal lymphatics as active fluid transport system
Three fluid crossflow heat exchangers in terms of temperature effectiveness of two fluids
Synthesis of a metal-stabilized halophosphazene compound with a density of 3 gm/cc at 137 degrees F serves as an improved stabilizer fluid for floated gyros. Gyro sensitivity can be increased with a fluid of higher density which could support a heavier float.
Improved cutting fluid completely controls the heat generated from machining operations, thus providing longer tool life. Fluid is especially useful in the working of plastics and replaces less efficient contaminating oils.
Levels of contamination in fluid systems can be determined by a definition of a particle by a mathematical model, a method for calculating the tolerance limits of contamination, and an estimation of the probability that the contamination on the surface will migrate with the fluid in the system.
Fluid sampling device collects a sample from a low-pressure fluid system and stores it for an indefinite period, with little risk of contamination of either the sample or the surrounding environment. The collector /a plastic bladder/ is separated from the sampler after a sample is collected.
Laser Doppler flowmeter for heterodyne detection of laser light scattered from moving fluid applied to fluid velocity and velocity distribution measurements
Energy method determining sufficient conditions for fluid motion stability described by infinitesimal theory of viscoelasticity, restricting analysis to confined fluids or periodic velocity field
Absolute thermal conductivity measurements on fluid normal H and fluid parahydrogen, noting apparatus and data graphical presentation along isotherms, isochores and isobars