Nucleate pool boiling of saturated Freon 113 in a reduced gravity environment
Nucleate pool boiling of saturated Freon 113 in reduced gravity environment
Littles, J. W.↗
SEARCH · Search NASA
Results for “nucleate”
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.
Impurity effects on heterogeneous nucleation from the vapor. III - Mercury on pyrex glass.
Thermal accommodation coefficient and critical supersaturation for nucleation of mercury vapor on pyrex glass
Hudson, J. B.↗
Transition from film to nucleate boiling in vertical forced flow.
Film-nucleate boiling transition for liquid nitrogen in vertical forced flow in electrically heated tube, discussing conduction model and agreement with visual experiment
Simon, F. F.↗
Ratio of surface to bulk nucleation critical fields for pure superconductors in the non-Landau-Ginzburg region
Surface to bulk nucleation critical fields ratio for semi-infinite pure superconductors
Hu, C.-R.↗
A review of criteria for predicting incipient nucleation in liquid metals and ordinary fluids
State-of-the-art review of criteria for predicting incipient nucleation in liquid alkali metals
Chiang, T.↗
The effect of an oscillating pressure on nucleate pool boiling
Nucleate pool boiling, calculating sinusoidal and square wave pressure variations effect on heat flux for comparison with measurements
Mccoy, K. E.↗
Deformation-assisted nucleation of titanium hydride in an alpha-beta titanium alloy
Titanium hydride deformation assisted nucleation in alpha-beta titanium alloy, showing low strain rate embrittlement and stress corrosion crack propagation in aqueous environments
Boyd, J. D.↗
Nucleate pool boiling of Freon 113 at reduced gravity levels
Heated surface orientation and reduced gravity effects on Freon 113 nucleate
Littles, J. W.↗
Some findings on water vapor nucleation in spacecraft debris clouds
Water vapor homogeneous nucleation in simulated spacecraft debris clouds
Reid, N. M.↗
Method of improving heat transfer characteristics in a nucleate boiling process Patent
Method for improving heat transfer characteristics in nucleate boiling process
Allen, L. D.↗
Effects of high accelerations and heat fluxes on nucleate boiling of water in an axisymmetric rotating boiler
Effects of high accelerations and heat fluxes on nucleate boiling of water in axisymmetric rotating boiler
Gray, V. H.↗
Epitaxial orientation studies of gold on uhv- cleaved mica during early stages of nucleation and growth
Epitaxial deposition of Au on ultrahigh vacuum cleaved mica during early nucleation and growth
Elliot, A. G.↗
Experimental approaches to well controlled studies of thin-film nucleation and growth.
Particular features and the performance of two experimental systems are described for quantitative studies of thin-film nucleation and growth processes including epitaxial depositions. System I consists of a modified LEED-Auger instrument combined with high-resolution electron microscopy. System II is a UHV electron microscope adapted for in-situ deposition studies. The two systems complement each other ideally, and the combined use of both can result in a comprehensive investigation of vapor deposition processes not obtainable with any other known method.
Poppa, H.↗
Nonstationary homogeneous nucleation
The theory of homogeneous condensation is reviewed and equations describing this process are presented. Numerical computer solutions to transient problems in nucleation (relaxation to steady state) are presented and compared to a prior computation.
Harstad, K. G.↗
Kinetics of homogeneous nucleation in many component systems
Reiss's classical treatment of the kinetics of homogeneous nucleation in a system containing two chemical components is extended to many-component systems. The formulation is analogous to the pseudo-stationary state theory of chemical reaction rates with the free energy as a function of the composition of the embryo taking the place of the potential energy as a function of interatomic distances.
Hirschfelder, J. O.↗
An assessment of warm fog: Nucleation, control, and recommended research
A state-of-the-art survey is given of warm fog research which has been performed up to, and including, 1974. Topics covered are nucleation, growth, coalescence, fog structures and visibility, effects of surface films, drop size spectrum, optical properties, instrumentation, liquid water content, condensation nuclei. Included is a summary of all reported fog modification experiments. Additional data is provided on air flow, turbulence, a summary of recommendations on instruments to be developed for determining turbulence, air flow, etc., as well as recommendations of various fog research tasks which should be performed for a better understanding of fog microphysics.
Corrin, M. L.↗
Kinetics of homogeneous nucleation on many-component systems
Reiss's (1950) classical treatment of the kinetics of homogeneous nucleation in a system containing two chemical components is extended to many-component systems. The formulation is analogous to the pseudostationary-state theory of chemical reaction rates, with the free energy as a function of the composition of the embryo taking the place of the potential energy as a function of interatomic distances.
Hirschfelder, J. O.↗
The influence of acceleration forces on nucleation, solidification, and deformation processes in tin single crystals
An apparatus was designed and assembled to directionally solidify single crystals under the influence of acceleration forces of various magnitudes. The investigation conducted showed that acceleration gradients produce a preferred growth orientation effect not previously observed for tin. Convection currents at approximately 5-g encourage multiple nucleation and subsequent random orientation of growth direction. Deformation effects such as recrystallization and twinning are observed at acceleration levels greater than 2-g.
Johnston, M. H.↗