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The GF are identified by a compact ``number'' to identify the coordinate
system, the boundary condition type, and the body shape. The numbering
system is an essential part of the organization of the GF Library, and a
familiarity with the numbering system will be important for serious users of
the GF Library.
Briefly, a GF designation under this numbering system contains letters to
identify each coordinate involved, and numerals to indicate the type of
boundary conditions present. Given a number, the body shape may be deduced
from the coordinate system and from the boundaries present. For example, a
1-D flat plate with both boundaries of type 1 has designation *X*11; the *X*
stands for the Cartesian coordinate and the two numbers represent the
boundary conditions. An overview of the numbering system for GF is given
below.
The numbering system was developed for transient heat conduction, so that
the ``default'' equation type is the Heat equation. For a unique
designation, specify the equation (Heat, Laplace, or Helmholtz) along with
the ``number''.
A more detailed numbering system exists for temperature solutions to heat
conduction problems, including details of boundary conditions, initial
conditions, and volume energy generation; for more information see Beck
(1986) and Beck et al. (1992)

** Next:** Coordinate System Designation.
** Up:** Organization of the GF
** Previous:** Boundary Condition Types.
*Kevin D. Cole*

*2003-07-21*