NEFTRAN-S: A network flow and contaminant transport model for statistical and deterministic simulations using personal computers
- Sandia National Labs., Albuquerque, NM (USA)
- INTERA Environmental Consultants, Inc., Austin, TX (USA)
This document describes the NEFTRAN-S computer code and is intended to provide the reader with enough information to use the code. NEFTRAN-S was developed for the United States Environmental Protection Agency for the assessment of ground-water flow and radionuclide transport from radioactive waste disposal in geologic formations. NEFTRAN-S is a successor to the NEFTRAN code. The code was developed in conjunction with NEFTRAN-2, which was developed recently for the United States Nuclear Regulatory Commission. As a result, some of the features contained in NEFTRAN-2 have been included in NEFTRAN-S. In particular, NEFTRAN-S includes an exponential-leach-rate source, decoupled time steps for source and transport, and an option for inputting pore-water velocities. Features unique to NEFTRAN-S include a user-friendly format for use on personal computers and coupling with statistical sampling and analysis using the SUNS software shell. This document was written to provide a comprehensive discussion of the NEFTRAN-S code including its history, the theory, its use and examples of possible applications. Minimal reference to previous documents is intended. 25 refs., 132 figs., 30 tabs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA); INTERA Environmental Consultants, Inc., Austin, TX (USA)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5644437
- Report Number(s):
- SAND-90-1987; ON: DE91014927
- Country of Publication:
- United States
- Language:
- English
Similar Records
User`s manual for the NEFTRAN II computer code
User's guide for GENII-S: A code for statistical and deterministic simulations of radiation doses to humans from radionuclides in the environment
Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
54 ENVIRONMENTAL SCIENCES
540330* -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1990-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
COMPUTER CODES
COMPUTERS
DIGITAL COMPUTERS
DISSOLUTION
ENVIRONMENTAL TRANSPORT
FLOW MODELS
FLUID FLOW
GEOLOGIC FORMATIONS
GROUND WATER
HYDROGEN COMPOUNDS
LEACHING
MANAGEMENT
MASS TRANSFER
MATHEMATICAL MODELS
MICROCOMPUTERS
N CODES
OXYGEN COMPOUNDS
PERSONAL COMPUTERS
RADIOACTIVE WASTE DISPOSAL
RADIONUCLIDE MIGRATION
SEPARATION PROCESSES
WASTE DISPOSAL
WASTE MANAGEMENT
WATER