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HydroBioGeoChem 123D (HBGC123D) |
HBGC123D is a computer code for the simulation of coupled non-isothermal hydrologic transport and biogeochemical kinetic and/or equilibrium reactions in variably saturated media. HBGC123D iteratively solves the 1-, 2-, or 3-dimensional heat transfer equations, transport equations, and the ordinary differential and algebraic equations of mixed biogeochemical reactions. The transport equations are solved for all aqueous chemical components and kinetically controlled species. A Lagrangian-Eulerian finite element method is used to solve the heat transfer and transport equations. The computer code accommodates hexahedral (6 faces), pentahedral (5 faces), and tetrahedral (4 faces) elements in three-dimensional domains, quadrilateral (4 sides) and triangular (3 sides) elements in two-dimensional domains, and line elements in one-dimensional domains. The Newton-Raphson method is used to solve the biogeochemical system of equations.
HBGC123D is also a high performance computer code that utilizes the multiprocessor power of today's parallel computers. In the early design phase, we realized that there was a need for a fast and efficient multiprocessor code such as HBGC123D. HBGC123D 1.1 has been rigorously tested on SGI shared-memory multiprocessor workstations, Linux PC's, other UNIX workstations, and Windows 95/NT PC's. Work is currently under way to include distributed-memory platforms such as the IBM SP and workstation clusters. These improvements will be available in subsequent releases.
HBGC123D is an extended version of the two-dimensional code HydroBioGeoChem developed by Drs. Karen Salvage and George (G.-T.) Yeh at Penn State University (Salvage, 1998; Yeh et al., 1998). It was developed as part of a U.S. Department of Energy (DOE) Environmental Technology Partnership Initiative (ETPI): Influence of Coupled Processes on the Fate and Transport of Industrial Mixed Waste Plumes in Structured Media.
Release Version 1.0 of HBGC123D is still available.
The Consultant
The HBGC123D Development Team at ORNL
J. P. (Jack) Gwo, Department of Civil and Environmental Engineering, University of Maryland, Baltimore County.
Hartmut Frenzel, Oak Ridge Institute for Science and Education.
Ed D'Azevedo, Computer Science and Mathematics Division.
Forrest M. Hoffman, Environmental Sciences Division.
Questions and bug reports should be directed to
Salvage, K. M., 1998. Reactive Contaminant Transport in Variably Saturated Porous Media: Biogeochemical Model Development, Verification, and Application. Ph.D. Dissertation. Department of Civil and Environmental Engineering, The Pennsylvania State University, University Park, PA 16802.
Yeh, G.-T., Salvage, K. M., Gwo, J. P., Zachara, J. M., and Szecsody, J. E. (1998): HydroBioGeoChem: A Coupled Model of Hydrologic Transport and Mixed Biogeochemical Kinetic/Equilibrium Reactions in Saturated-Unsaturated Media. Report ORNL/TM-13668. Oak Ridge National Laboratory, Oak Ridge, TN.