SEARCH · Engineering Papers
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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Turbulence measurements and roughness effects on viscous drag reduction with polymer solution in pipe flow, discussing friction factor, wall velocity profile, etc
Apparent thermal radiation properties for one dimensionally rough surface, discussing variance with property models employed in engineering analysis of radiant transfer
Instrument, consisting of isolator, differentiator, absolute value circuit, and integrator, uses output signal from surface texture analyzer profile-amplifier to calculate surface roughness slope. Calculations provide accurate, instantaneous value of the slope. Instrument is inexpensive and applicable to any commerical surface texture analyzer.
Surface roughness effects of bar on vortex sound and aerodynamic drag generation during move through air
Performance prediction for LM landing radar over rough terrain
Analytical method for calculating thermal conductance of rough flat surfaces in high vacuum
Wall roughness effect on damping of liquid oscillations in rectangular tanks
Response characteristics of turbojet airplanes to runway roughness
Capsule system packaging for Mars rough lander
Heat transfer in convergent-divergent nozzles with different values of wall roughness
Roughness detector for recording surface pattern of irregularities
Effects of surface roughness on heat transfer in conical nozzles
Light reflectance measurements from rough surfaces at millimeter wavelengths
Atmospheric limitations on remote sensing of sea surface roughness by reflected daylight
Measuring wavelength dependence of backscatter from smooth randomly rough surface using acoustic waves in water
Electronic packaging and cabling on Capsule System Advanced Development Lander for Mars rough landing
Rough metal surfaces thermal constriction resistance for total heat flow through microcontacts
Surface roughness effects on measured cross spectral density of wall pressure fluctuations beneath turbulent boundary layer