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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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Impulsive velocity requirements within Mars sphere of influence for converting stopover to powered flyby mission
Solubility and diffusivity for diffusion in sphere using computer, discussing error analysis
Sphere motion along axis of short rotating cylinder of slightly viscous fluid, measuring drag, flow field and velocity
Magnetofluid dynamic flow pressure distribution around sphere placed in aligned magnetic and velocity fields, noting drag and base pressure
IR absorption coefficient, reflectivity and complex index of refraction of ice and water spheres, calculating single scattering albedo, asymmetry factor and extinction cross section
Hydrodynamic force experienced by sphere moving slowly through viscous fluid towards plane surface at small gap widths, including inertial effects
Celestial sphere scanning by passive method applicable to space missions requiring long lifetime and moderate pointing accuracies
Approximate method to predict ablative recession rate and mass loss on sphere cones in Martian atmosphere entry
Density distribution along stagnation streamline of sphere in rarefied supersonic flow, noting upstream disturbance
Solid sphere transient thermal stress distribution analyzed by scattered light photoelasticity
Three sphere backgrounds for space section of Taub cosmological solution, discussing wave background separation model
Transient flow field of sphere struck by normal shock wave noting wave diffraction and shock layer formation
Rarefied gas flow over sphere studied within kinetic theory of gases, with solutions for wide range of fluid densities
Monte Carlo analysis of gold sphere transmission experiments at 24 keV neutron energy using S wave spin state data
Nature of outside boundary layer on liquid sphere in steady, uniform stream
Finite difference techniques used in numerical solutions for inviscid radiating shock layers around spheres at hyperbolic speed in air
Heat transfer coefficients for film boiling from submerged spheres
Wind tunnel drag measurements on subsonic sphere