Summary

This case study has shown how the facilities of NAMMU have been used in groundwater flow and transport calculations performed as part of the Nirex 97 assessment of the performance of a potential repository at Sellafield.

The flexibility of the finite-element method enabled complex domains to be represented well.

3D and 2D models were created.

Calculations of groundwater flow coupled to salinity and heat were undertaken.

Radionuclide transport calculations were carried out.

The calibrated models matched site observations.

 


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