Nuclide Migration from Areal Sources Into a Fracture

by J. Ahn, Lawrence Berkeley Lab, Berkeley, CA, USA,
P. L. Chambr?, Lawrence Berkeley Lab, Berkeley, CA, USA,
T. H. Pigford, Lawrence Berkeley Lab, Berkeley, CA, USA,
W. W.-L. Lee, Lawrence Berkeley Lab, Berkeley, CA, USA,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

The authors show analytic solutions to the problem of hydrogeologic transport of radionuclides released from finite areal sources into a planar fracture. The authors illustrate the solutions through numerical and graphical displays of the spatial and temporal distribution of the radionuclides as a result of advection in the fracture, transverse dispersion and surface sorption, as well as diffusion into and sorption in the rock matrix. The numerical illustrations indicate that sufficient distances away from the sources equivalent single sources give acceptable approximations.

Subject Headings: Hydraulic fracturing | Rocks | Radioactive wastes | Radioactive materials | Hydrogeology | Waste disposal | Transport phenomena

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