Distributed edge source terms (force terms per unit length in 2D or
per unit area in 3D).
These distributed terms are translated into equivalent nodal force terms
on the edges of elements.
This option is meant for 2D and 3D calculations.
You should specify a force term for each principal unknown
which is present in the calculation (see the start of the
data part description for a list of principal unknowns).
Also the record **force_element_edge_geometry** should
be specified, and optionally the records **force_element_edge_factor**
and **force_element_edge_time** can be specified.

tochnog 2001-09-02