Finite Elements in Water Resources : Proceedings of the 4th International Conference, Hannover, Germany, June 1982

These proceedings contain the papers presented at the Fourth International Conference on Finite Elements in Water Resources, held in June, 1982, at the University of Hannover, Federal Re­ public of Germany. This Conference continued the successful series of previous conferences held at Princeton University in 1976, at Imperial College in 1978, and at the University of Mississippi in 1980. Since Finite Elements have proved to be a powerful means for analysing water resource problems, the principal objective of the Conference was to provide an exchange of experiences in practical applications of the finite element method and to establish a forum for discussion regarding accuracy, economy, limitations and improvements. Related discretization methods were included within the scope of the Conference. New develop­ ments in numerical and computational techniques, basic mathe­ matical formulations, and soft- and hardware aspects were considered to be equally important topics for an exchange of ideas between both theoretically and practically oriented re­ searchers. The Conference Organizing Committee is very grateful to the many distinguished scientists who attended the Conference, and for their contributions towards the proceedings. This collection of papers in being made available to a wider audience of en­ gineers and scientists by CML Publications in Southampton, U.K. Front Matter....Pages i-xv Front Matter....Pages 1-1 Numerical Modelling of the Global Atmosphere....Pages 3-27 Overview of the Finite Element Method in Groundwater Hydrology....Pages 29-44 Solving Turbulent Flow Problems Using the F.E.M.....Pages 45-63 Front Matter....Pages 65-65 Petrov-Galerkin Schemes for the Steady State Convection-Diffusion Equation....Pages 67-76 Hybrid and Mixed Finite Elements in Fluid Mechanics....Pages 77-84 The Reliability Estimates and Adaptivity in Finite Element Engineering Computations....Pages 85-101 On the Accuracy and Efficiency of a Finite Element Algorithm for Hydrodynamic Flows....Pages 103-120 Implementation of a Direct Method for the Biharmonic Problem in the Context of a Code Using Substructuration....Pages 121-129 Discrete Optimization of Finite-Element Solutions: A Concept Discussed for the Diffusion-Advection Problem....Pages 131-143 On a Direct Approach for the Solution of Linear Space-Invariant 2-D Differential Convolution Models....Pages 145-154 Mixed Finite Element Methods for Nonlinear Problems....Pages 155-163 Certain Variational Principles with No Constraints for Fluid-Solid Strong Interaction....Pages 165-174 Front Matter....Pages 175-175 Convective and Radiative Transfer Past a Porous Flat Plate in Compressible Flow....Pages 177-186 Effective Transient Compressible Flow Analysis in Pipe Networks....Pages 187-196 Continuation Methods for the Finite Element Solution of Turbulent Flow....Pages 197-206 The Application of FEM and FDM to Flow Separation Pattern ; A Comparison Study....Pages 207-216 Current Progress in Solving the Time-Dependent, Incompressible Navier-Stokes Equations in Three-Dimensions by (Almost) the FEM....Pages 217-232 Front Matter....Pages 233-233 A Distributed Rainfall-Runoff Model....Pages 235-244 Numberical Computation of Supercritical and Subcritical Flows in Open Channels with Varying Cross-Sections....Pages 245-255 Finite Element Solution of the Lagrangian Equations of Unsteady Free-Surface Flows on Dry River Beds....Pages 257-267 Front Matter....Pages 233-233 A Hydrodynamic Model for Open Channel Flow Problems....Pages 269-282 On the Use of Explicit Methods of Solution of the Saint Venant Equations for open Channel Flow....Pages 283-292 Front Matter....Pages 293-293 Some Recent Developments and Prospects in Finite Difference Methods....Pages 295-307 A Time Integration Technique for Modelling of Small Amplitude Tidal Waves....Pages 309-317 Formulating a Three Dimensional Hydrodynamic Sea Model Using a Mixed Galerkin-Finite Difference Method....Pages 319-333 Feasability of Finite Element Methods for Oceanic General Circulation Modelling....Pages 335-347 The Use of Kalman-Bucy Filters in Forecasting the Waterlevels in the Dutch Coastal Area....Pages 349-358 Time-Weighting of the Momentum Equation in Explicit Wave Equation Models of Surface Water Flow....Pages 359-369 Formulating Layered and Semi-Analytic Finite Element Flow Programs with Variable Eddy Viscosity....Pages 371-382 Tidal Propagation in a Rectangular Basin of the Bay of Fundy....Pages 383-392 F.E. Analysis of Waves in a Semi-Infinite Layer of Fluid....Pages 393-402 Front Matter....Pages 403-403 Numerical Modeling of Storm Surge Generation Phenomena....Pages 405-414 Typhoon Surge Analysis by Selective Lumping Two Step Explicit Finite Element Method....Pages 415-430 Tidal River Flow Calculations with Measured Velocities on the Open Boundaries....Pages 431-439 Residual Currents During Changing Meteorological Circumstances....Pages 441-450 Some Computational Problems of Oceanography....Pages 451-460 Front Matter....Pages 461-461 Computation of Wind-Driven Circulation in Shallow Lakes....Pages 463-472 A Three Dimensional Finite Element Model for Stratified Flow....Pages 473-482 Finite Element Analysis of Water Quality in Lake Erie....Pages 483-492 Calculation of Lake-Circulation with Threedimensional Finite Elements....Pages 493-497 Front Matter....Pages 499-499 A Microcomputer Program for Design of the Self Retiming Mechanics of Large Tidal Power Sites....Pages 501-510 Automatic Generation Of Finite Element Network for Bidimensional and Quasi-Three-Dimensional Equations Governing the Groundwater Flow....Pages 511-521 Procedure of Mesh Data Generation in Codes for the Analysis of Viscous Flow....Pages 523-532 Front Matter....Pages 533-533 Some Experiences Using Finite Element Methods for Fluid Flow Problems....Pages 535-548 Software Developments for Finite Element Applications....Pages 549-566 Finite Element Analysis of Interface Problem in Nonsteady Seepage....Pages 567-576 A Frontal Method Based Solution of the Quasi-Three-Dimensional Finite Element Model for Interconnected Aquifer Systems and Fluid Mass Balance Evaluation. Steady and Unsteady Equations....Pages 577-592 Solution of Immiscible Displacement in Porous Media Using the Collocation Finite Element Method....Pages 593-602 The Streamfunction Method a Direct Approach to Simulate Groundwater Flow....Pages 603-611 Front Matter....Pages 613-613 Influence of a Soil Pipe Network on Catchment Hydrology....Pages 615-626 Adaptation of FEAP for Seepage with a Free Surface....Pages 627-636 Finite Element Computations of Horizontal Groundwater Flow with Moving Boundaries....Pages 637-651 Finite-element Investigation of the Groundwater Basin of the Szentendre Island, Hungary....Pages 653-662 I nterconnected Gro undwater S ystems S imulation (IGROSS) Description of the System and Its Application to the Western Libya Regional Aquifer....Pages 663-672 Finite Element Simulation of the Transient Exploitation of a Coastal Aquifer....Pages 673-684 Numerical Simulation of Infiltration into Porous Media and Response of the Water Table....Pages 685-694 Comparison of Three Models of a Dual Aquifer System....Pages 695-704 Front Matter....Pages 705-705 A Hybrid Model to Simulate Landsubsidence due to Groundwater Recovery....Pages 707-716 Finite Element Analysis of Soil Moisture Flow and Moisture Stress in a Dessicating Soil....Pages 717-726 Front Matter....Pages 727-727 Numerical Modelling of Rubble Mound Breakwaters....Pages 729-736 Front Matter....Pages 727-727 Finite Element Simulation of Contaminant Transport in Fractured Rock near Karlshamn, Sweden....Pages 737-746 Front Matter....Pages 747-747 Finite Element Solutions of Coupled Groundwater Flow and Transport Equations under Transient Conditions Including the Effect of the Selected Time Step Sizes....Pages 749-760 Numerical Estimation of the Solution of the Diffusion Equation with Fixed Dirichlet-Type Boundary Conditions....Pages 761-769 The Principal Direction Technique: A New Approach to Groundwater Contaminant Transport Modeling....Pages 771-788 Numerical Solution of Heat and Water Transport in an Unsaturated Freezing Soil....Pages 789-798 Fe Model of Stochastic Ground Water Pollution....Pages 799-808 Front Matter....Pages 809-809 On the Numerical Solution of the Diffusion-Convection Equation....Pages 811-816 Transport Simulation Using Three Dimensional Alternating Direction Collocation....Pages 817-827 The Discrete Element Method for Different Upwind Schemes and Curving Boundaries....Pages 829-833 Finite Element Techniques in Transport Phenomena....Pages 835-848 Eulerian-Lagrangian Methods for Advection-Dispersion....Pages 849-876 Numerical Solution of Diffusive-Convective Differential Problems by General Finite Difference Forms....Pages 877-884 Petrov-Galerkin Methods for Two Dimensional Flow Calculations....Pages 885-893 Numerical Solution of Three-Dimensional and Time-Dependent Advection-Diffusion Equations by Collocation Methods....Pages 895-905 Front Matter....Pages 907-907 Thermal Discharge Analysis in St-Lawrence River by Finite Elements : A Case Study....Pages 909-916 Water Quality Modeling with Finite Elements and Interactive Graphics....Pages 917-926 Tidal Current and Substance Dispersion by Finite Element Method Using Finite Difference Technique....Pages 927-936 Simulation Analysis for Diffusion of Discharged Warm Water in the Bay by Finite Elements....Pages 937-947 Front Matter....Pages 949-949 Hydrotransportation as a Point Process....Pages 951-957 Finite Element Modelling of Sediment Transport in an Estuary....Pages 959-968 Front Matter....Pages 949-949 Mathematical Modelling of Time Dependent Wave Attenuation and Discrete Solid Body Transport in Gravity Driven Partially Filled Pipe Flows....Pages 969-981 Computer Simulation of Sedimentation Processes....Pages 983-994 Front Matter....Pages 995-995 A New Hydrodynamic Model for Restricted Fluid Domains....Pages 997-1006 Wave Action on Floating Structures and Wave Propagation Using Finite Elements Method....Pages 1007-1017 Numerical Solution of Some Linear Evolution Problems in Naval Hydrodynamics....Pages 1019-1028 Calculation of the Value of the Hydrodynamic Forces Acting on a Culvert Tainter Valve by Means of the Finite Elements Method....Pages 1029-1037 Simulation of Free Jet Trajectories for the Design of Aeration Devices on Hydraulic Structures....Pages 1039-1048 Front Matter....Pages 1049-1049 A General Approach to Water Quality....Pages 1051-1053 Aquifer Parameter Identification Using Stochastic Approximation....Pages 1055-1062 Identification of Soil Parameters for an Infiltration Problem....Pages 1063-1072 Optimal Operation of Wells in a Multilayered Leaky Aquifer....Pages 1073-1082 Front Matter....Pages 1083-1083 Some Applications of the Boundary Element Method for Potential Problems....Pages 1085-1110 Boundary Element Method: Processing of the Source Term of the Poisson Equation by Means of Boundary Integrals Only....Pages 1111-1118 Finite Element Analysis of Momentum Transfer in Rivers of Complex Cross Section....Pages 1119-1128