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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Effect of unit Reynolds number, nose bluntness, angle of attack, and roughness on transition on 5 degree half-angle cone at Mach 8
Random noise calculations in altitude reading of lunar module altimeter for rough surfaces target
Spectral analysis use for describing lunar surface roughness
Reflection and transmission of dipole radiation with rough or smooth boundaries
Theoretical and experimental studies on acoustic and electromagnetic wave scattering from rough surfaces
Roughness effect on microwave emissivity according to geometric optics with application to moon and Venus
Doppler echo from random rough surface, discussing average power return, frequencies, amplitudes, antenna beamwidth and radar data correlation
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