Community Research and Development Information Service - CORDIS

Abstract

COLUMN2 is a 1D FORTRAN77 computer program designed for studies of the effects of various physicochemical processes on migration. It solves the solute transport equation and can take into account dispersion, sorption, ion exchange, first and second order homogeneous chemical reactions. Spatial variations of input pulses and retention factors are possible. The method of solution is based on a finite difference discretion followed by the application of the method of characteristics and two separate grid systems. This report explains the mathematical and numerical methods used, describes the necessary input, contains a number of test examples, provides a listing of the program and explains how to acquire the program, adapt it to other computers and run it. This report serves as a manual for the program.

Additional information

Authors: NIELSEN O J, RISOE NATIONAL LABORATORY, ROSKILDE (DENMARK);CARLSEN L, RISOE NATIONAL LABORATORY, ROSKILDE (DENMARK);BO P RISOE NATIONAL LABORATORY, ROSKILDE (DENMARK), RISOE NATIONAL LABORATORY, ROSKILDE (DENMARK)
Bibliographic Reference: EUR 10120 EN (1985) MF, 73 P., BFR 150, BLOW-UP COPY BFR 365, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
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