Nuclear Engine System Simulation (NESS). Version 2. 0: Program user's guide. Final Report

Technical Report · Mon Mar 01 00:00:00 EST 1993

OSTI ID:6151689

Pelaccio, D G; Scheil, C M; Petrosky, L

This Program User's Guide discusses the Nuclear Thermal Propulsion (NTP) engine system design features and capabilities modeled in the Nuclear Engine System Simulation (NESS): Version 2.0 program (referred to as NESS throughout the remainder of this document), as well as its operation. NESS was upgraded to include many new modeling capabilities not available in the original version delivered to NASA LeRC in Dec. 1991, NESS's new features include the following: (1) an improved input format; (2) an advanced solid-core NERVA-type reactor system model (ENABLER 2); (3) a bleed-cycle engine system option; (4) an axial-turbopump design option; (5) an automated pump-out turbopump assembly sizing option; (6) an off-design gas generator engine cycle design option; (7) updated hydrogen properties; (8) an improved output format; and (9) personal computer operation capability. Sample design cases are presented in the user's guide that demonstrate many of the new features associated with this upgraded version of NESS, as well as design modeling features associated with the original version of NESS.

• Research Organization: National Aeronautics and Space Administration, Cleveland, OH (United States). Lewis Research Center
• OSTI ID: 6151689
• Report Number(s): N-93-23875; NASA-CR-191081; E-7623; NAS-1.26:191081; CNN: NAS3-25809; RTOP 593-71-00
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
N CODES
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SPACE PROPULSION REACTORS
COMPUTERIZED SIMULATION
DESIGN
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SPACE POWER REACTORS
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