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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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Hydrodynamic theory for breathing vibrations of a partially filled, cylindrical tank, giving natural frequencies of liquid sloshing as well as pressure distribution
Oscillator circuits automatically measure the liquid level in tanks. The circuit employs a twin transmission line as a liquid level probe.
Distortions around weld areas on sheet-aluminum tanks and other structures are removed with a portable electromagnetic hammer. The hammer incorporates a coil that generates a controlled high-energy pulsed magnetic field over localized areas on the metal surface.
Thermal and structural performance data on tank insulation system tested under ground hold and simulated launch conditions
Sloshing forces and moments on cylindrical tank - integration of nonlinear force equations
Nondimensional stress resultants and displacements for multicell tanks of orthotropic construction loaded by internal pressure and axial compression
Electrolytic tank analog for two-dimensional analysis of electrostatic thrustor ion optics
Equation for free liquid surface profile caused by gas bubble injection into tank of liquid
Natural frequencies and modes of oscillation of liquids in partially filled axisymmetric ellipsoidal tanks calculated, using variational principle
Liquid instability of vibrating partially filled elastic tank emphasizing resonant breathing mode and frequency response
Dual seal insulation, consisting of an inner layer of sealed-cell Mylar honeycomb core and an outer helium purge channel of fiber glass reinforced phenolic honeycomb core, is used as a thin, lightweight insulation for external surfaces of cryogenic-propellant tanks.
Compact, cylindrical gas diffuser with radial exhaust slots and internal axial flow channels maintains the necessary pressure for the desired withdrawal rate of cryogenic liquids from tanks. The diffuser minimizes pressure loss which results from condensation of nitrogen gas in the liquid and prevents direct impingement of gas jets on liquid surface to reduce turbulence.
Liquid hydrogen nuclear reactor simulator tests - determination of flow iniation with turbine accelerated tank pressure 50 psia
Subharmonic liquid oscillation in axisymmetric tank subjected to vertical, axial excitation - solution by perturbation theory
Pressure waves in water filled tanks impacted by hypervelocity projectiles
Unfeasibility of soft tooling for semi-toroidal test tank
Interfacial heat and mass transfer in pressurized tank containing two-phase liquid hydrogen
Comparison of stitched foam thermal insulation protection system for liquid hydrogen tank wall of Centaur launch vehicle with ac-6 jettisonable insulation