Vadose Zone Hydrology

Garant předmětu:

Lecturer:

Tutor:

Supervisor:

Department of Landscape Water Conservation

Synopsis:

1. Theory of flow in porous media. Derivation of flow equations, boundary conditions.

2. The hydraulic characteristics of the porous medium. The theory of capillary models.

3. Determination of hydraulic characteristics, optimization of parameters of retention curves, prediction of hydraulic conductivity.

4. Numerical methods to solve flow equations.

5. Elementary processes of water flow in subsurface.

6. Solute transport. Miscible flow, conservative flow, advection, dispersion, dispersion characteristics.

7. Reactive transport. Description of fundamental chemical reactions, equilibrium and kinetic models. Universal transport equations, boundary conditions.

8. Determination of dispersion characteristics. Multiphase flow (non-aqueous phase liquids).

9. Heterogeneity of soil medium.

10. Flow and transport of substances in soils exhibiting preferential flow.

11. Simulation models and their applications.

12. Modeling of soil water regime in engineering and environmental problems. Ethical standards and interpretation of simulation results.

13. Case studies

Requirements:

None.

Syllabus of lectures:

1. Theory of flow in porous media. Derivation of flow equations, boundary conditions.

2. The hydraulic characteristics of the porous medium. The theory of capillary models.

3. Determination of hydraulic characteristics, optimization of parameters of retention curves, prediction of hydraulic conductivity.

4. Numerical methods to solve flow equations.

5. Elementary processes of water flow in subsurface.

6. Solute transport. Miscible flow, conservative flow, advection, dispersion, dispersion characteristics.

7. Reactive transport. Description of fundamental chemical reactions, equilibrium and kinetic models. Universal transport equations, boundary conditions.

8. Determination of dispersion characteristics. Multiphase flow (non-aqueous phase liquids).

9. Heterogeneity of soil medium.

10. Flow and transport of substances in soils exhibiting preferential flow.

11. Simulation models and their applications.

12. Modeling of soil water regime in engineering and environmental problems. Ethical standards and interpretation of simulation results.

13. Case studies

Syllabus of tutorials:

1. Bulk density. Water content.

2. RETC, Pedotransfer functions.

3. Hydraulic characteristics.

4. - 6. Modeling, HYDRUS 1D.

7. Random walk method for transport simulations.

8. - 9. Modeling of transport.

10.- 12. HYDRUS 2D.

Study Objective:

Understanding to soil as a porous media and its physical properties. Understanding of the processes involved in the water flow in soil and transport of solutes and heat.

Study materials:

!Bear, J., & Cheng, A. H.-D. (2010). Modeling groundwater flow and contaminant transport. Dordrecht: Springer.ISBN: 978-1-4020-6681-8

!Hillel, D. (2009). Environmental soil physics. Amsterdam [u.a.: Academic Press. ISBN 978-0-12-348655-4

!Jury, W. A., & Horton, R. (2004). Soil physics. Hoboken, NJ: J. Wiley. ISBN-13: 978-0471059653

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans: