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.
Directional properties of ultrasonic waves scattered from rough surfaces with applications to electromagnetic scattering
Effects of controlled roughness on boundary layer transition for upswept blunted plates in free stream
Pressure distributions due to fabrication-type surface roughness on ogive cylinder at transonic speeds
Pressure drags due to two-dimensional fabrication- type surface roughness on ogive cylinder at transonic speeds
Data analysis from pressure and heat transfer tests on surface roughness elements with laminar and turbulent boundary layers
Methods of estimating roughness drag at supersonic speeds
Electromagnetic wave scattering and depolarization from rough surface, noting existence of surface current vector component pointing in direction of incident wave
Omnidirectional scattering of ultrasonic waves from rough surfaces satisfying Kirchhoff theory with respect to electromagnetic scattering
Depolarization of electromagnetic waves backscattered from rough surface boundary
Omnidirectional characteristics of scattering of acoustic waves from statistically rough surfaces, measuring scattering cross section as function of incidence and observation angles
Backscatter of electromagnetic waves from rough layer simulated by acoustic backscattering from partially submerged Plexiglas layer
Lunar surface roughness comminution estimated by considering meteoric body catering process
Error correction in lunar slope angles and surface roughness of Ranger photographs
Effect of surface roughness and waviness on overall thermal contact resistance
Backscatter of electromagnetic waves from rough surface
Kirchhoff approximation used to calculate backscatter of ultrasonic waves from rough layer
Roughness effect on heat transfer to hemisphere cylinders in hypersonic flow
Statistical model of lunar surface roughness, shadow, and thermal emission