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Groundwater

Course Description:

Introduction to groundwater and flow through porous media. Darcy’s Law. Mathematical formulation of problems of flow through porous media. Analytical solutions for 1-D aquifers, confined, phreatic or leaky. Hydraulics of wells for steady and unsteady flow, multiple well systems, method of images, wells near boundaries. Subsoil and aquifer pollution. Geo-environmental pollution and soil. Physicochemical and biological pollutant-soil-water interaction processes. Contaminant speciation, contaminant fate and transport in the underground environment. Decontamination and remediation technologies in the geo-environment. Case studies.

Prerequisite Knowledge

Basic knowledge in fluid mechanics and applied hydraulics is recommended.

Course Units

# Title Description Hours
1 Introduction Basic properties of groundwater aquifers. Groundwater balance. Darcy’s Law. 4
2 Flow equations Fundamental equations of a 3-D steady flow problem. Boundary conditions. Flow nets. 4
3 Hydraulic approach Dupuit assumptions for a phreatic aquifer. Analytical solutions for 1-D confined and unconfined aquifers. Aquifers with a sloping bottom. Seepage through earth dams, Pavlosky’s solution. Semi-permeable aquifers. 8
4 Application of complex functions theory in groundwater problems Synoptic presentation of complex functions theory and of conformal mapping. Groundwater flow under impermeable structures. Kozeny’s solution. Method of fragments. 4
5 Unsteady flow Unsteady flow: Basic definitions, equations formulation. 4
6 Hydraulics of wells Wells in steady and unsteady flow. Multiple well systems, wells near boundaries. Pumping tests. 12
7 Geoenvironmental pollution Subsoil and aquifer pollution. Origin, categorization and legal-institutional context of pollution. 4
8 Fate and transport Role of soil as a source of pollution and as a natural decontamination filter. Physicochemical and biological pollutant-soil-water interaction processes. Contaminant speciation, contaminant fate and transport in the underground environment. 4
9 Remediation technologies Decontamination and remediation technologies in the geo environment. Case studies of geo-environmental pollution and restoration. 8

Teaching Methods

Teaching methods Class lectures. Presentation and solution of simple examples and problems. Elaboration on complicated cases and case-studies.
Teaching media Blackboard and power-point presentations.
Problems - Applications YES

Student Assessment

  • Final written exam: 70%
  • Problems - Applications: 30%

Textbooks - Bibliography

  1. J. Bear, "Hydraulics of Groundwater", Mcgraw-Hill, New York, 1979
  2. R.A. Freeze and J.A. Cherry, "Groundwater", Prentice-Hall, Inc., 1979
  3. Herman Bouwer, "Groundwater Hydrology", Mc Graw-Hill Book Company, 1978
  4. P.A. Domenico and F.W. Schwartz, “Physical and Chemical Hydrogeology”, John Wiley and Sons, 1990
  5. Α. Νάνου-Γιάνναρου - Τ. Παπαθανασιάδης "ΥΔΡΑΥΛΙΚΗ ΥΠΟΓΕΙΩΝ ΝΕΡΩΝ", Έκδοση ΕΜΠ
  6. Σημειώσεις Δ. Δερματά

Lecture Time - Place:

  • Thursday, 08:45 – 11:30,
    Rooms:
    • Αμφ. Ηχοτεχνίας