1. New tools for facilitating the integration of models into teaching David F. Boutt Umass-Amherst

2. Overview Many aspects of the Geosciences now use physically-based models for research Incorporating these into classes is often problematic Students could benefit from early exposure to these techniques New tools and faster computers offers an oppurtunity for educators

3. The Past

4. The Present - Modeling Tools A number of GUI-based flexible modeling environments are available Real time simulation and visualization Useful for Lecture and Laboratory Two examples –COMSOL Multiphysics –Topodrive/particle flow

5. COMSOL Multiphysics A powerful generalized finite-element PDE solver with visualization Specific Earth Science Modules Ideal for exploring coupled processes –Fluid flow and deformation –Fluid flow and transport Good for setting up a problem and allowing students to perform sensitivity analysis

8. Topodrive/ParticleFlow 2D Steady state groundwater flow with particle transport –Developed by Paul Hsieh, USGS –Java-based, web app http://water.usgs.gov/nrp/gwsoftware/td pf/tdpf.htmlhttp://water.usgs.gov/nrp/gwsoftware/td pf/tdpf.html Example use …

9. 210 m 100 m Normal stress on the system and the fractures. Permeability of fractures under lithostatic stress conditions. Hydraulic head where the permeability of fractures is constant. Hydraulic head where the permeability of fractures is function of stress

10. Finite Element Model A mesh is applied to the 2D model space Plane Strain Darcian Flow Recharge No Flow Hydraulic Head Gravitational Stress Fixed Boundary Fracture is an internal boundary Displacement allowed Permeable Fracture

11. The Future Student-driven real time modeling environments? 3D visualization?

12. Rest Stop

14. Hydraulic Head (m) Rest Stop - Simulated