MMT: A Random-Walk One-Dimensional Multicomponent Mass-Transport Code.

摘要

This report describes the MMT (Multicomponent Mass Transport) computer code which calculates the one-dimensional transport of radionuclides by Discrete-Parcel-Random-Walk (DPRW) approach in a specified uniform ground-water flow system with constant transport and hydrologic properties. The code takes into account sorption/desorption effects, longitudinal hydrodynamic dispersion, convective transport, and radioactive decay and linear or branched decay chains with an arbitrary number of members. The document contains a user's manual for the code, verification, and sample test cases. In the Section 1.5 of this document the code custodianship and control is described along with the status of verification, validation, and peer review of this report. (ERA citation 08:033241)