SEARCH · Engineering Papers
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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Computer program for optimization of low thrust interplanetary trajectories assuming constant and continuous thrust from given initial and final position, velocity and flight time
Computer program for calculation of lattice parameters for cubic, tetragonal, and hexagonal crystals - magnesium oxide and aluminum oxide
Lovell digital computer program written in Fortran for calculation of control systems
FORTRAN computer program for calculating model planetary atmospheres and density and temperature dispersion data for Apollo reentry
Four computer programs examine effects of design parameters and indicate areas for research of multistage axial flow compressors. The programs provide information on velocity diagrams and stage-by-stage performance calculation, radial equilibrium of flow, radial distribution of total pressure, and off-design performance calculation.
Computer program obtains the real-gas isentropic flow functions and thermodynamic properties of gases for which the equation of state is known. The program uses FORTRAN 4 subroutines which were designed for calculations of nitrogen and helium. These subroutines are easily modified for calculations of other gases.
FORTRAN computer program for designing supersonic inlets by characteristic theory
Sampling errors in closed loop hybrid computer programs
FORTRAN computer program for stiffness matrix eigenvalue calculation
Five computer programs for analyzing magnetic tape recordings of digital data from microphotometer
Computer program for tracing rays through spacecraft windows
Computer program for determining performance and system requirements of electrically propelled spacecraft missions
Users manual for computer program to calculate random vibrations of reinforced rectangular cylindrical panels in fluctuating pressure environments
Control system optimization hybrid computer program
Computer programming support of SERT-2 control center
Computer program, OPEX 2, determines minimum weight, volume, or cost for shields. Program incorporates improved coding, simplified data input, spherical geometry, and an expanded output. Method is capable of altering dose-thickness relationship when a shield layer has been removed.
Comprehensive computer program for predicting solar cell performance
Computer programming manual for calculating temperature and reactant concentrations as functions of time and axial position in catalyzed continuous flow hydrogen-oxygen reactors