Welcome to the 2010–2011 lecture series!
The regular lecture series is held at the Austrian Canadian Cultural Centre at 3112 11th Street NE, Calgary.
(See map here).
There is parking available either at the ACC or on-street.
The talks are held either in the upstairs hall or downstairs – doors on the west side of the building.
Lectures are free to attend unless stated otherwise.
| Date | Tuesday August 10, 2010 – CANCELLED |
|---|---|
| Event | 2010 Darcy Lecture |
| Location | The Southern Alberta Pioneer Memorial Building – 3625, 4th Street S.W., Calgary |
| Time |
5:30 – Cocktails 6:15 – BBQ Dinner Buffet 7:00 – Darcy Lecture |
| Speaker | Timothy Scheibe, Ph.D., Pacific Northwest National Laboratory 
|
| The 2010 Henry Darcy Distinguished Lecturer, Timothy (Tim) D. Scheibe, Ph.D., joined Pacific Northwest National Laboratory
in September 1992 and is currently a staff scientist in the Hydrology Technical Group. He received his bachelor's degree in
geological engineering from Washington State University, a master's in civil engineering from the University of Washington,
and a Ph.D. in civil engineering from Stanford University. At PNNL, he has been responsible for proposal development, project
management, and technical contributions in a number of different areas of environmental research and technology development
broadly related to the hydrologic sciences. His primary research focus is on characterization and numerical simulation of natural subsurface heterogeneity, and its impacts on biogeochemically reactive transport in groundwater systems. His research projects include both computational and field experimental elements. Recently, he has worked on problems in the area of subsurface biogeochemistry, including microbial transport in groundwater, and bioremediation of metals and radionuclides. He is currently collaborating with computational scientists and applied mathematicians to simulate coupled flow, transport, and biogeochemical processes at cellular, pore, and continuum scales. His research is supported primarily by the Department of Energy's Office of Science through the Environmental Remediation Science Program and the Scientific Discovery through Advanced Computing Program. Scheibe is a member of NGWA. He has served on the editorial board of the NGWA journal Ground WaterŪ since 2001 and is active in the American Geophysical Union, in which he currently represents the Hydrology Section on the Joint Assembly Program Committee. |
|
| Topic | Quantifying Flow and Reactive Transport in the Heterogeneous Subsurface Environment: From Pores to Porous Media and Facies to Aquifers |
| Abstract | Hydrogeologists working on problems related to groundwater contamination, remediation, or water
|
| quality protection face an extraordinary challenge. The fundamental transport and reaction processes that control contaminant
fate occur at length scales that are many orders of magnitude smaller than the scales at which predictions of observable phenomena
are needed. Spatial variability (heterogeneity) of physical and biogeochemical properties exists across the entire range of relevant
scales. In this presentation, we will take a numerical journey through this range of length scales. Along the way, we will examine a number of case studies that illustrate both the challenges posed and some exciting ways that advanced computational methods are being brought to bear on these problems. We will start by examining pore-scale simulations of flow, transport, and reactions in porous media, in which the complex geometry of solid grains and pore spaces is explicitly quantified. Pore-scale models are being used to develop new understanding of fundamental processes that can be incorporated into larger-scale models that treat porous media as effective continua. We will consider the applicability of two approaches: (1) direct upscaling of pore-scale simulation results using various methods, and (2) multiscale hybrid modeling, in which pore- and continuum-scale models are combined within a single simulation. At the continuum scale, complex geological heterogeneity is expressed at a multitude of scales. For example, in sedimentary aquifers one may observe sediment architectural elements such as lamination (typically millimeter scale), cross-bedding (typically centimeter scale), and larger units such as beds, bed sets, facies, formations, aquifers, and aquitards. We will examine the representation of geologic heterogeneity in reactive transport models, with a focus on the effects of correlated physical and biogeochemical heterogeneity. These issues will be presented in the context of a number of field sites relevant to U.S. Department of Energy contamination problems, including a bacterial transport site, a uranium bioremediation site, and a site with persistent uranium contamination associated with diffusion-controlled mass transfer processes. |
|
| Organizers |
Calgary Geotechnical Society International Association of Hydrogeologists |
| Sponsor |
Mobile Augers & Research Ltd. |
| Cost | $40 per person; $15 full-time students Pay at the door by cash or cheque only; pre-registration is required. |
| RSVP | By email to DARCY2010@cgygeosociety.org by August 6, 2010 Please include your company name, phone number and indicate any dietary restrictions. If you have questions, call Frank at 403-863-5849 or send an email to DARCY2010@cgygeosociety.org |