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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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At least 181 records · Page 10

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NASA NTRS1968

Equilibrium normal-shock and stagnation-point properties of helium for incident-shock Mach numbers from 1 to 30

Charts of thermodynamic properties of helium showing effects of ionization, particle interactions, temperature, and atmospheric pressure

Bengtson, R. D.↗

NASA NTRS1969

Analysis of problems related to slingshot shock machine high-velocity shock testing

Slingshot device is capable of imparting a square-pulse acceleration greater than 20,000 g with a pulse duration of up to 1.5 milliseconds. A load is applied to the bungee cord and the sled is drawn back to desired length. When released it provides the desired velocity at impact.

Shipley, J. W.↗

NASA NTRS1972

Deformation and transformation of rock-forming minerals by natural and experimental shock processes. I - Behavior of minerals under shock compression.

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Stoeffler, D.↗

NASA NTRS1973

Shock effects in experimentally shocked terrestrial ilmenite, lunar ilmenite of rock fragments in 1-10 mm fines /10085,19/, and lunar rock 60015,127

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Sclar, C. B.↗

NASA NTRS1986

Comment on 'Increase of ion kinetic temperature across a collisionless shock. I - A new concept' by L. C. Lee et al. and 'Ion acceleration in quasiperpendicular magnetosonic shock waves with subcritical Mach number' by Y. Ohsawa and J. Sakai

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Winske, D.↗

NASA NTRS1990

Three-dimensional thermal-structural analysis of a swept cowl leading edge subjected to skewed shock-shock interference heating

A three-dimensional flux-based thermal analysis method has been developed and its capability is demonstrated by predicting the transient nonlinear temperature response of a swept cowl leading edge subjected to intense three-dimensional aerodynamic heating. The predicted temperature response from the transient thermal analysis is used in a linear elastic structural analysis to determine thermal stresses. Predicted thermal stresses are compared with those obtained from a two-dimensional analysis which represents conditions along the chord where maximum heating occurs. Results indicate a need for a three-dimensional analysis to predict accurately the leading edge thermal stress response.

Polesky, Sandra P.↗

NASA NTRS1992