# 102-0448-00L  Groundwater II

 Semester Spring Semester 2022 Lecturers M. Willmann, J. Jimenez-Martinez Periodicity yearly recurring course Language of instruction English

 Abstract The course is based on the course 'Groundwater I' and is a prerequisite for a deeper understanding of groundwater flow and contaminant transport problems with a strong emphasis on numerical modeling. Objective The course should enable students to understand advanced concepts of groundwater flow and transport and to apply groundwater flow and transport modelling.the student should be able toa) formulate practical flow and contaminant transport problems.b) solve steady-state and transient flow and transport problems in 2 and 3 spatial dimensions using numerical codes based on the finite difference method and the finite element methods.c) solve simple inverse flow problems for parameter estimation given measurements.d) assess simple multiphase flow problems.e) assess spatial variability of parameters and use of stochastic techniques in this task.f) assess simple coupled reactive transport problems. Content Introduction and basic flow and contaminant transport equation.Numerical solution of the 3D flow equation using the finite difference method.Numerical solution to the flow equation using the finite element equationNumerical solution to the transport equation using the finite difference method.Alternative methods for transport modeling like method of characteristics and the random walk method.Two-phase flow and Unsaturated flow problems.Spatial variability of parameters and its geostatistical representation -geostatistics and stochastic modelling.Reactive transport modelling. Lecture notes Handouts Literature - Anderson, M. and W. Woessner, Applied Groundwater Modeling, Elsevier Science & Technology Books, 448 p., 2002- J. Bear and A. Cheng, Modeling Groundwater Flow and Contaminant Transport, Springer, 2010- Appelo, C.A.J. and D. Postma, Geochemistry, Groundwater and Pollution, Second Edition, Taylor & Francis, 2005- Rubin, Y., Applied Stochastic Hydrology, Oxford University Press, 2003- Chiang und Kinzelbach, 3-D Groundwater Modeling with PMWIN. Springer, 2001. Prerequisites / Notice Each afternoon will be divided into 2 h of lectures and 2h of exercises. Two thirds of the exercises of the course are organized as a computer workshop to get hands-on experience with groundwater modelling.