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Density Dependent Groundwater FlowBeschrijving: Salt Water Intrusion and Heat Transport Auteur: Gualbert Oude Essink Dictaat: Density Dependent Groundwater Flow PART I Salt water intrusion in coastal aquifers1 Introduction 2 Characteristics of a density dependen groundwater system -Chemical characteristics of water -Equation of motion (Darcy’s law), continuity and solute transport -Boussinesq approximation -Brine groundwater 3 Freshwater head -Introduction, horizontal flow and vertical flow 4 The concept of a fresh-saline interface -Badon Ghijben-Herzberg principle -Evolution of a freshwater lens in a phreatic aquifer -Upconing of saline groundwater -Effect of a relative sea level rise 5 Control of salt water intrusion -Countermeasures to control salt water intrusion -Monitoring of salt water intrusion 6 Numerical modelling -Introduction -Problems with 3D modelling of salt water intrusion -Some computer codes, MOCDENS3D -Examples of numerical modelling with MOCDENS3D -Vertical interface, saltwater pocket in a fresh groundwater environment -Evolution of a freshwater lens -Henry’s problem, Hydrocoin, level 1, case 5, Elder problem 7 Salt water intrusion in the Netherlands 8 Introduction -Heat transport: conduction-convection equation -Analogy of heat and solute transport -Linear stability analysis -Double-diffusive convection |
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Groundwater ModellingAuteur: Gualbert Oude Essink Dictaat: Groundwater Modelling PART I Modelling Protocol 1 Introduction 2 Classification of mathematical models 3 Methodology of modelling 4 Data gathering PART II Groundwater Modelling 5 Introduction 6 Mathematical description of hydrogeologic processes 7 Solution techniques 8 Numerical aspects of groundwater models 9 Some selected groundwater codes |
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Animations: examples of salinisation processes