Verification of Vault Model 'VERMIN' For Post Closure Behaviour of Repositories for Non-Heat Generating Radioactive Wastes

摘要

The computer program VERMIN embodies a generalised model of a nuclear waste repository suitable for LAND2 or LAND3 types of disposal site. This model is designed for use within the probabilistic assessment code SYVAC. VERMIN is intended to represent the nearfield flow and transport processes, and communicates with the far field geosphere and biosphere models within SYVAC. This document gives details of the verification tests applied to the VERMIN computer model. The tests given are a subset of the full program testing carried out during its development up to September, 1985. Tests are chosen to demonstrate that both the individual processes modelled within VERMIN, and also the overall model itself performs as it would be expected and that the program gives realistic predictions of radionuclide releases from the repository vault. (ERA citation 13:008572)