Verification of the Metropol Code for Density Dependent Flow in Porous Media. HYDROCOIN Project. Level 1, Case 5 and Level 3, Case 4

摘要

Today, many countries are considering the disposal of nuclear waste in geological formations as the most promising solution for permanent waste isolation. An important part of studies on the safety analysis of disposal systems is the assessment of groundwater flow through the repository and the host rock to the accessible environment. For this purpose, often it is necessary to develop mathematical models and numerical computer codes describing the physico-chemical processes involved. HYDROCOIN is an international cooperative study aimed at understanding the various analytical and numerical methods used for describing groundwater flow. The report gives the results obtained by the RIVM-team for the test cases 5 of level 1 and 4 of level 3. The test case relates to the study of density-dependent flow in a porous medium. Case 5 of level 1 concerns the flow of groundwater influenced by the presence of salt dissolved from a salt dome. Case 4 of level 3 deals with the influence of parameter values.