TRUST84. Sat-Unsat Flow in Deformable Media
- RE/SPEC Inc., Rapid City, SD (United States)
TRUST84 solves for transient and steady-state flow in variably saturated deformable media in one, two, or three dimensions. It can handle porous media, fractured media, or fractured-porous media. Boundary conditions may be an arbitrary function of time. Sources or sinks may be a function of time or of potential. The theoretical model considers a general three-dimensional field of flow in conjunction with a one-dimensional vertical deformation field. The governing equation expresses the conservation of fluid mass in an elemental volume that has a constant volume of solids. Deformation of the porous medium may be nonelastic. Permeability and the compressibility coefficients may be nonlinearly related to effective stress. Relationships between permeability and saturation with pore water pressure in the unsaturated zone may be characterized by hysteresis. The relation between pore pressure change and effective stress change may be a function of saturation.
- Research Organization:
- RE/SPEC, Inc., Rapid City, SD (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- OSTI ID:
- 139452
- Report Number(s):
- ESTSC-000573D0VAX00; NESC-9788
- Resource Relation:
- Other Information: DN: The DEC VAX version incorporates the maxima for the various entities that comprise a TRUST84 model (materials, nodes, internal connections, surface connections, boundary nodes, fluid-generating nodes, entries in each tabulated quantity, nodes at which nondimensional results will be calculated) into PARAMETER statements that dimension the arrays associated with the entities.; PBD: 10 Oct 1989
- Country of Publication:
- United States
- Language:
- English
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