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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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Room temperature gaseous hydrogen mixed with liquified hydrogen in a venturi produces a two- phased liquid hydrogen stream at a stable temperature. This technique is useful in laboratory testing where presently, temperature control is maintained by a calibrated heat leak that results in considerable expenditure of cryogenic refrigerants.
Method employing a nonframing motion picture camera, a continuous front light source, and a strobe light determines the size and velocity of small particles in nonturbulent fluid streams. This method is used in the study of the motion of solid and liquid particles in research and industrial fluid flow systems.
Contaminant valve with a coaxial groove rotor uniformly deposits contaminant into a flow stream under full pressure and flow conditions. The valve tests filters and filter elements of hydraulic oil, fuel, or lubricant systems without any detrimental effect on the performance.
Data comparisons and photographic observations of coaxial isothermal turbulent mixing of dissimilar gases at nearly equal stream velocities
Hypersonic inviscid flow past a circular cylinder with nonequilibrium oxygen dissociation and dissociation of the free stream
Mass transfer cooling in laminar boundary layers with hydrogen injected into nitrogen and carbon dioxide streams
Forced-convection heat transfer analysis for liquid metal flow in rectangular channels with heat source within fluid stream
Isothermal turbulent coaxial mixing of dissimilar gases at nearly equal stream velocities
Two-dimensional nonisoenergetic turbulent jet mixing between two compressible streams at constant pressure
Longitudinal wave propagation in elastic pipe filled with incompressible viscous streaming fluid
Instability propagation direction for self- gravitating gas clouds or contrastreaming plasma streams with magnetic field and rotation
Secondary jet in hypersonic stream, and flow separation ahead of jet
Laminar boundary-layer heat transfer and shear stress predictions from similarity solutions, emphasizing large free-stream velocity gradients and highly cooled walls
Hypersonic flow of air past circular cylinder with nonequilibrium oxygen dissociation, including dissociation of free stream
Enthalpy of gas stream, calorimeter surface treatment and heat transfer measurement errors in arc-heated tests
Forced convection heat transfer for liquid metal flow in rectangular channels with prescribed wall heat fluxes and heat sources in fluid stream
Interplanetary plasma stream velocities measured by bistatic radar transmissions from Earth to spacecraft, considering presence of uniform interplanetary magnetic field
Free laminar boundary layer flow between parallel streams of different magnetic fields and temperatures for incompressible viscous fluid