Colloid transport code-nuclear user`s manual

Technical Report · Fri Apr 03 00:00:00 EST 1992

DOI:https://doi.org/10.2172/139186· OSTI ID:139186

Jain, R ^[1]

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1. New Mexico Univ., Albuquerque, NM (United States)

This report describes the CTCN computer code, designed to solve the equations of transient colloidal transport of radionuclides in porous and fractured media. This Fortran 77 package solves systems of coupled nonlinear differential equations with a wide range of boundary conditions. The package uses the Method of Lines technique with a special section which forms finite-difference discretizations in up to four spatial dimensions to automatically convert the system into a set of ordinary differential equations. The CTCN code then solves these equations using a robust, efficient ODE solver. Thus CTCN can be used to solve population balance equations along with the usual transport equations to model colloid transport processes or as a general problem solver to treat up to four-dimensional differential systems.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States); New Mexico Univ., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 139186
• Report Number(s): LA-SUB-93-185; ON: DE93018276; TRN: 93:018157
• Resource Relation: Other Information: PBD: 3 Apr 1992
• Country of Publication: United States
• Language: English

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C CODES
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