EXPAC (EXPlosion Analysis Code) user's manual: A computer code for analyzing explosion-induced flow and material transport in nuclear facilities
This user's manual supports the EXPAC computer code, which can predict explosion-induced flows, pressures, and material transport within structures. The code can analyze any arbitrarily interconnected network of building rooms and ventilation systems. EXPAC is part of a family of computer codes that is designed to provide improved methods of safety analysis for the nuclear industry. The EXPAC code structure is based on the TVENT code, but the numerical solution scheme is quite different and is designed to handle very rapid gas transients. A lumped-parameter formulation is used that includes the effects of inertia and choking. This version of the EXPAC code is particularly suitable for calculating the detailed effects of explosions in the far field by using a parametric representation of the explosive event. A very basic material transport capability is included that models the effects of convection, depletion, entrainment, and filtration of material. The effect of clogged filter systems on the gas dynamics also is taken into account. The code input and several sample problems that illustrate EXPAC's capabilities are included. 53 refs., 50 figs., 2 tabs.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOD
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6995574
- Report Number(s):
- LA-11823-M; ON: DE90012704
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
42 ENGINEERING
EXPLOSIONS
FLOW MODELS
NUCLEAR FACILITIES
ACCIDENTS
VENTILATION SYSTEMS
COMPUTERIZED SIMULATION
AEROSOLS
BLOWERS
BUILDINGS
CHEMICAL REACTIONS
E CODES
FILTERS
FORTRAN
MANUALS
MASS TRANSFER
RADIATION HAZARDS
T CODES
TRANSIENTS
COLLOIDS
COMPUTER CODES
DISPERSIONS
DOCUMENT TYPES
HAZARDS
HEALTH HAZARDS
MATHEMATICAL MODELS
PROGRAMMING LANGUAGES
SIMULATION
SOLS
054000* - Nuclear Fuels- Health & Safety
990200 - Mathematics & Computers
400800 - Combustion
Pyrolysis
& High-Temperature Chemistry
420400 - Engineering- Heat Transfer & Fluid Flow