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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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An overview of the user subroutine including program structure, solution algorithm, solver-user subroutine interaction, data structure, indexing subroutines, utility subroutines, utility subroutines and functions, and compiling and linking. Code examples are provided and includes a demonstration (Tank Blowdown with Heat Transfer).
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Simulation systems for supersonic transport program and manned space flight
This paper describes the implementation of an intermediate fidelity model of a closed Brayton Cycle power conversion system (Closed Cycle System Simulation). The simulation is developed within the Numerical Propulsion Simulation System architecture using component elements from earlier models. Of particular interest, and power, is the ability of this new simulation system to initiate a more detailed analysis of compressor and turbine components automatically and to incorporate the overall results into the general system simulation.