Code Manual for CONTAIN 2.0 - Federation of American Scientists

Comments at the begiming of an input file describing the nature of the file, the particular
circumstances being modeled, etc., are usefid for later referral. One can also use the TITLE option.
However, titles cannot be put at the very beginning of an input fde, while comment lines can be. On
the other hand, because titles are printed at the beginning of each long edit and become part of the
plot file, they are convenient for labeling the output.
13.3.4.6 Hints for Collapsing Multi-Cell I.rmutFiles. When modeling a plant, the highest level of
detail will often be determined by the format of the available data. Usually, one begins by generating
CONTAIN input based on the most detailed nodalization that one believes the analysis requires and
that the data will support. Later, a simpler input file with fewer cells maybe required. There area
number of guidelines that will help a user when collapsing large multi-cell input files. First, in
anticipation of the possible need to simplify, a detailed input file should be set up using the structure
naming and ordering scheme suggested in Section 13.3.3.5. The following suggestions may also
help to avoid confusion and needless debugging:
Determine the collapsed nodalization and generate a map of cells by developing a table that
shows how the “old” cells are combined into the “new” cells.
Develop a flooding profile mapping for combining the multiple pools in the “old” input file
to the “new” input file. Remember that CONTAIN is limited to only one pool per cell. Pool
flow paths may require restructuring, as may the manner in which structures submerge in the
pools.
Generate a concrete structure mapping table for the “old” input file showing all of the
structure connections. Use the nodalization mapping table to help develop additional
columns in the mapping table that show the new cell and structure numbers.
If the number of miscellaneous steel structures needs to be collapsed, also generate a steel
structure mapping table, separating out flooded and unflooded structures. Consider
combining unflooded structures into three to five thickness classes. Comment the combined
structures to indicate the grouping according to the “old” structure names.
If the “old” input file makes use of the film tracking model, generate a film flow mapping
table similar to the mapping tables for connected structures.
Generate a flow path and elevation mapping table.
Using the mapping tables for nodalization, structure, film flow, and flow paths, begin to
mark up a hardcopy of the “old” input listing. Do not modi~ an electronic copy of the “old”
input before marking up the changes on the hardcopy. File comparison utilities are awkward
to use in keeping track of changes. A hardcopy markup is generally abetter approach. Try
not to rename structures; instead use the comment capability to make notes on naming and
ordering.
Rev O 13 67 6/30/97