HR: 11:05h
AN: H42A-04    [Abstracts]
TI: Transport in large scale porous media with conduits via lattice Boltzmann models
AU: * Sukop, M C
EM: sukopm@fiu.edu
AF: Department of Earth Sciences, Florida International University, University Park, Miami, FL 33199 United States
AU: Anwar, S
EM: shadab.anwar@fiu.edu
AF: Department of Earth Sciences, Florida International University, University Park, Miami, FL 33199 United States
AU: Bardsley, K J
EM: katie.bardsley@fiu.edu
AF: Department of Earth Sciences, Florida International University, University Park, Miami, FL 33199 United States
AB: Lattice Boltzmann models (LBM) can transcend the pore scale by incorporating a 'probabilistic' bounceback based on porosity that leads to Darcy's law-based simulation while retaining the ability to solve the Navier-Stokes equations in macropores and conduits as can occur in karst aquifers for example. By incorporating a second distribution function, transport of solutes or any advected scalar quantity can be included. However, when the LBM Darcy's law simulation approach is used, only diffusive (i.e., symmetrical) dispersion results. A method for incorporating anisotropic dispersion is available in the literature. We extend this work to more complex flow fields that result from permeability variations characteristic of natural porous media and demonstrate the coupling with conduit flow and transport.
DE: 1805 Computational hydrology
DE: 1832 Groundwater transport
DE: 1894 Instruments and techniques: modeling
SC: Hydrology [H]
MN: Fall Meeting 2005