TOODEE: A two-dimensional, time-dependent heat conduction program.

摘要

TOODEE is a two-dimensional, time-dependent heat conduction computer program written in FORTRAN. This program is suitable for investigating general transient and/or steady-state problems. Typical of (but not limited to) the type of problems for which the program has been used are the calculation of temperature distributions in reactor fuel elements during power excursions. The mesh for the program is formed by variably spaced orthogonal curves in either slab or cylindrical geometry. The cylindrical geometry may be either axisymmetric, with space variables R-Z, or polar, with space variables R-(theta). Conditions to be specified independently at each boundary are either surface temperatures or heat transfer coefficients and either exterior temperatures of flow rates. Materials and coolant properties required in the program are evaluated from FORTRAN arithmetic functions supplied by the user. These properties may be time and/or temperature dependent. In addition, nonisotropic thermal conductivities and expansion coefficients may be defined. Phase changes are permitted in all materials except coolants. 6 refs.