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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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Supersonic Preston tube correlations for Mach number and Reynolds number effects on hypersonic turbulent skin friction on adiabatic surfaces, simplifying correlation
Skin friction measurement in aerodynamic tests using thin liquid crystal coatings with changes in maximum light scattering wavelength in response to shearing forces
Solid lubricant films friction and wear life determined under various conditions of contact, temperature, load and atmosphere
Sliding friction tests of Cu and Cu-Be alloy plates in contact with various alloy sliders in air and vacuum
Contact conformity effects on spinning torque and friction coefficient in angular contact ball bearings from lubricated and unlubricated tests
Solid solutions atomic ordering effect on friction and wear in vacuum, using CuAu and FeCo systems
Flexible steel pivot mount, suspended by flat vertical beryllium copper springs, is capable of rotation, free of hysteresis and starting friction. Mount requires no lubrication, is made in varying sizes, and is driven with either dc torque motor or mechanical linkage.
Use of Preston tubes for measuring hypersonic turbulent skin friction
Effect of surface active media on friction, deformation, and fracture of calcium fluoride in various environments
Design of counterbalance system for skin friction drag measurements on hypersonic vehicles
Feedback force balance mechanisms for skin friction measurements at wide temperature range
Design and performance of gas bearing support for skin friction meter
Design of counterbalancing system for skin friction meter accelerations
Experimental Preston tube and law-of-the-wall study of turbulent skin friction on axisymmetric bodies at supersonic speeds
Sliding friction with 3.5 percent silicon-iron single crystals, polycrystals, and rolled sheets
Sliding friction and wear problems under unlubricated and boundary-lubricated conditions
Turbulent skin friction on nonadiabatic flat plate at Mach number 6.5
Reducing friction and contact resistance of sliding electrical contacts of beryllium by gallium lubrication in vacuum