Momentum transfer from flowing explosive gases to spherical particles during computer simulation of blasting-induced rock motion
A discrete element computer program, DMC (Distinct-Motion Code), has been used for several years to simulate blasting-induced rock motion. Recent enhancements of DMC's capabilities have included addition of an algorithm that couples together rock motion and gas flow. This allows the user to specify a particular explosive which also specifies equation-of-state and other parameters necessary to model explosive gas flow from the blastwell. Rock loading by the flowing gas is calculated automatically. The mechanism for calculating the rock loading is the subject of this paper. The rock motion effects the gas flow calculation by changing the porosity. DMC is currently being used on a SLTN SPARCstation 2 computer workstation.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6982011
- Report Number(s):
- SAND-92-2375C; CONF-930136--1; ON: DE93004052
- Country of Publication:
- United States
- Language:
- English
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040300* -- Oil Shales & Tar Sands-- Drilling
Fracturing & Mining
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
BITUMINOUS MATERIALS
CALCULATION METHODS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COMPUTER CALCULATIONS
COMPUTER CODES
COMPUTERIZED SIMULATION
D CODES
DECOMPOSITION
ENERGY SOURCES
EXPLOSIVE FRACTURING
FINITE ELEMENT METHOD
FLUID FLOW
FOSSIL FUELS
FRACTURING
FUELS
GAS FLOW
MATERIALS
MECHANICS
MOMENTUM TRANSFER
MOTION
NUMERICAL SOLUTION
OIL SHALES
RETORTING
ROCK MECHANICS
ROCKS
SEDIMENTARY ROCKS
SHALES
SIMULATION