Geology 727 Advanced Hydrogeology (2 credits) Contaminant Transport Modeling Spring 2004 Instructor: Professor Mary Anderson (andy@geology.wisc.edu) 419 Weeks Hall (262-2396) Office hours by appointment. Web site: http://www.geology.wisc.edu/courses/g727 Pre-requisites Ideal preparation for this course consists of Geology 627, 629, and 724. The parts of those courses that are essential for this course, however, might be acquired from other types of courses or experience. I will assume you are familiar with the basic principles of groundwater flow, including the basic groundwater flow equation and relevant hydrogeological parameters. I will also assume that you have had some experience running MODFLOW. It will be helpful if you have run MODFLOW with Groundwater Vistas. If you haven’t, you will need to spend some extra time learning how to work with Groundwater Vistas. Course Objectives This course provides an overview of transport theory as applied to groundwater problems, an indepth look at the numerical transport code MT3DMS, and an introduction to the application of transport models to field problems. MT3DMS is a popular and widely-used 3-D transient transport code, which uses output from the groundwater flow code MODFLOW. Both MODFLOW and MT3DMS are supported by the pre/post-processor Groundwater Vistas. Hence, we will be using Groundwater Vistas as the platform from which to run both MODFLOW and MT3DMS. The MT3DMS code allows for consideration of multiple chemical species when combined with the code RT3D, but we will not use the multi-species option or RT3D during the course. We will use the excellent and highly readable textbook by Zheng and Bennett (2nd edition, 2002). Dr. Zheng is my former PhD student. He is also the developer of MT3DMS and is now a professor at the University of Alabama. Reading Materials 1. Text: Applied Contaminant Transport Modeling, C. Zheng and G.D. Bennett, WileyInterscience, 2nd edition, 2002, 621p. 2. MT3D-MS manual: by C. Zheng and P.P. Wang, US Army Corps of Engineers, Tech. Rept, June 1998 (available electronically from course web site). 3. Other references will be available on reserve for this course in the Geology Library, located on the 4th floor of Weeks Hall. They include: Lee, T.-C., Applied Mathematics in Hydrogeology, 382 pp., Lewis Publishers, Boca Raton, 1999. D&S: Domenico, P.A. and Schwartz, F.W., 1998, Physical and Chemical Hydrogeology, 2nd ed., J. Wiley & Sons, Inc., 506 p. 2 S&M: Spitz, K., and J. Moreno, A Practical Guide to Groundwater and Solute Transport Modeling, 461 pp., John Wiley & Sons, Inc., New York, 1996. Javendel, I., et al., Groundwater Transport: Handbook of Mathematical Models, 228 p., Water Resour. Monograph 10, Amer. Geophys. Union, 1984. W&A: Wang, H.F., and M.P. Anderson, Introduction to Groundwater Modeling, W.H. Freeman, 1982, reprinted by Academic Press, 1995. Grading Grades will be based on: 4 homework assignments worth a total of 250 points 1 take home quiz worth 50 points 1 exam worth 100 points Homework Assignments 1. Analytical solutions 2. MT3D problem with injection well 3. MT3D problem with recharge and chemical reactions 4. Complex problem with remediation Assignment 1 Take home quiz 2 3 4 points 50 50 50 50 100 approx. date given 2/12 2/26 3/2 3/23 4/6 approx. date due 2/26 3/2 3/23 4/6 4/29 The computer assignments can be completed in the Computer Lab located in room A320, Weeks Hall. Computer programs needed for the course can also be downloaded from the course web site for use on individual computers. Lecture Schedule and Reading Assignments Week of Topic Jan 19 Introduction/Review Reading (from Zheng and Bennett, in bold) Ch. 1-2; Lee (ch.1) Jan 26 Advection-Dispersion Equation Ch. 3; D&S (Ch. 14) Feb 2 Ad.Disp.Eqn. w/ Chemical Reactions p.78-95;S&M(p.75& appendices) Feb 9 Analytical Solutions Ch.5, p. 174, Section 10.410.5; Lee (Ch.7), Problem #1 3 D&S(Ch. 18), W& A (p. 173186), Javandel et al. (skim) Feb 16 Spreadsheet Models Section 7.2.1 Feb 23 Review Introduction to MT3DMS Take Home Quiz Ch. 7; MT3DMS manual March 1 Numerical solution methodologies Problem #2 March 4th – AWRA – no class* March 8 Mass balance issues Input parameters Ch. 11 ---------------------------------------------- SPRING BREAK --------------------------------------------------March 22 Source terms Problem #3 Section 10.6 March 29 Dispersion and Heterogeneity pp. 34-36, 57-85; Section 14.1 Apr. 5 Problem #4 Apr. 12 Dual Domain Models Apr. 19 Review ----Thurs. April 22nd: EXAM----- Apr. 26 Calibration & Uncertainty May 3 Discussion of Problem #4/summary Section 14.4; Sect. 3.2.5 Chap. 9-13 *Note: March 4-5th is the AWRA conference in Wisconsin Rapids. All are urged to attend. There will be no class on March 4th.