Modeling and Computation in Environmental Sciences : Proceedings of the First GAMM-Seminar at ICA Stuttgart, October 12–13, 1995

This volume contains 20 contributions to the 1st GAMM-Seminar at ICA Stuttgart, which was held in Stuttgart, October 12 - 13, 1995. In the field of environmental sciences, numerical procedures for the simulation of ecological problems are growing increasingly topical. The solution of typical problems in environmental research is closely connected with numerical supercomputing. The main subject of the seminar was the modeling and numerical simulation of ground water and soil water. Further topics were multi-scale modeling, special discretization schemes, adaptivity, multi-grid methods, heterogenity, parameter identification, homogenization, density driven groundwater flow, and coupling of transport and chemistry. Front Matter....Pages i-vii The Application of Mixed Methods to Subsurface Simulation....Pages 1-12 Numerical Simulations by Homogenization of Two-Phase Flow Through Randomly Heterogeneous Porous Media....Pages 13-24 A Dynamic Adaptive Method for the Computation of Highly Advective or Highly Dispersive Transport Processes in Fractured Rock....Pages 25-35 Lagrange-Galerkin Approximation For Advection-Dominated Contaminant Transport With Nonlinear Equilibrium Or Non-equilibrium Adsorption....Pages 36-48 A Parallel Adaptive Finite-Element Semi-Lagrangian Advection Scheme for the Shallow Water Equations....Pages 49-60 Practical Aspects of the Simulation of Viscous Flow using Lattice Boltzmann Automata....Pages 61-71 Flow Channeling in Unsaturated Porous Media of Strong Heterogeneity....Pages 72-85 Block SSOR Preconditioners for 3-D Groundwater Flow Problems....Pages 86-90 A Discretisation for Transport Problems with Dominant Convection Using Characteristics and Finite Elements....Pages 91-101 Comparison of Approaches for the Coupling of Chemistry to Transport in Groundwater Systems....Pages 102-120 Theoretical and Numerical Aspects of Elasto-Plastic Porous Media Models....Pages 121-132 Numerical Simulation of the Multiphase Flow of Contaminants in Porous Media....Pages 133-145 Direct and Inverse Modeling of Multiphase Flow Systems....Pages 146-157 A three-dimensional numerical model for the calculation of complex flow and transport phenomenas in reservoirs....Pages 158-169 On Numerical Solution Methods for Nonlinear Parabolic Problems....Pages 170-180 Fast Solvers for Non-Linear Fem-Bem Equations....Pages 181-186 A Multigrid-Homogenization Method....Pages 187-202 A Parallel 2D Operator Splitting Method for the Navier-Stokes and Transport Equations....Pages 203-214 Dual-Porosity Modelling of Contaminant Transport in Fractured Porous Formations: the Effect of Spatial Variations of Matrix Block Properties....Pages 215-226 An Aligned 3D-Finite-Volume Method for Convection-Diffusion Problems....Pages 227-243 Back Matter....Pages 244-244 The GAMM Committee for Scientific Computing organizes workshops on subjects in Scientific Computing. These workshops are intended to bring researchers from engineering application and mathematical theory together, to provide a platform for discussion and scientific exchange and to further new research fields. st The series of such workshops was continued in 1995, October 12-13, with the 1 GAMM-Seminar at ICA Stuttgart on the special topic "Modelling and Computation in Environmental Sciences" at the Institute for Computer Applications, Universitiy of Stuttgart. The seminar was attended by 75 scientists from 5 countries and 26 lectures were given. The list of topics contained lectures on ground water and soil water flow and transport, heterogeneity, density driven ground water flow, homogenization and multi-scale modelling, special discretization schemes, adaptivity, multi-grid me thods, and parameter identification. Special thanks are due to Prudence Lawday, Oktavia Klassen and Gerd Grieshei mer, who carefully compiled the contributions to this volume. This volume contains 20 contributions to the 1st GAMM-Seminar at ICA Stuttgart held in October 1995. The main subject of the seminar was the modelling and numerical simulation of ground water and soil water. Further topics covered include: multi-scale modelling; adaptivity; and heterogenity.