FECWASTE: User's Manual of a Finite-Element Code for Simulating WASTE Transport Through Saturated-Unsaturated Porous Media. Environmental Sciences Division Publication No. 1907

摘要

This report presents the user's manual of FECWASTE, a Finite-Element Code for simulating WASTE transport through saturated-unsaturated porous media. The code is designed for generic application. For each site-specific application, 12 control cards are required to specify the size of data arrays and 6 control cards are used to assign the control numbers in the main program. In addition, prior to the execution of FECWASTE, FECWATER must be executed to yield the groundwater flow variables including the pressure head, total head, moisture content, and Darcy's velocity components. Input data to the computer code includes the program control indices, properties of the porous media, parameters of waste-media interaction, the geometry in the form of elements and nodes, boundary and initial conditions, and waste characteristics. Principal output includes the spatial distribution of the concentration and material fluxes at any desired time. Fluxes through various types of boundaries, material accumulated in the matrix and solution, and material transformed through decay and chemical, physical, and biological degradation are also the output, if desired. (ERA citation 08:011926)