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Code Manual for CONTAIN 2.0 - Federation of American Scientists

Code Manual for CONTAIN 2.0 - Federation of American Scientists

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FRAc<br />

= frac<br />

NAME<br />

= snarne<br />

NUMBER<br />

= snum<br />

CELL<br />

= ncell<br />

SLOPE<br />

= theta<br />

WIDTH<br />

= width<br />

be specified immediately after a given DIVERT keyword. Note that each<br />

FIL4C grouping is terminated with an EOI. The FRAC values will be<br />

ignored and the pool in the same cell will be the target if the structure is<br />

partially submerged. If DIVERT is not specified but FILMFLOW is, then<br />

film flow correlations will be used to determine the film thickness, but all<br />

outflow will be directed to either the pool in the current cell or the overflow<br />

repository, as with the default film model.<br />

the fraction <strong>of</strong> the fdm outflow to be diverted to the structure specified by the<br />

NAME or NUMBER and CELL keywords below when the current structure<br />

is not submerged. If the structure is partially submerged, the film outflow<br />

will be directed entirely to the pool in the current cell. The variable “frac”<br />

corresponds to an element <strong>of</strong> the fdm transfer matrix ~i discussed in Section<br />

10.2.2, where i corresponds to the current structure and the recipient structure<br />

j is designated through the a<strong>for</strong>ementioned keywords. The current structure<br />

may not be specified as the recipient structure. Note that while recirculating<br />

or re-entrant film flow paths maybe constructed, they may adversely affect<br />

code stability and are not recommended. The sum <strong>of</strong> all “frac” values<br />

specified after a given DIVERT keyword must be less than or equal to 1. If<br />

the sum is less than 1 and the structure is not partially submerged, a fractional<br />

amount corresponding to ~~i in Equation (10-44) will be diverted to the<br />

overflow repository. Default = O.<br />

the name <strong>of</strong> the structure to which “frac” applies. Either the structure name<br />

or number “snum” (see below) must be given.<br />

the number, according to input order within a cell, <strong>of</strong> the structure to which<br />

“frac” applies. Either the name “sname” or number must be given.<br />

the number <strong>of</strong> the cell containing the structure to which “fiat” applies.<br />

Default = current cell.<br />

the average inclination from horizontal <strong>of</strong> the inner structure face along the<br />

horizontal equal-area line. The angle “theta” corresponds to 6, discussed in<br />

Section 10.2.2.1. Note that “theta” must be positive and correspond at most<br />

to a vertical surface: 0< “theta” ~ 90°. Unstable films on the underside <strong>of</strong><br />

surfaces me not considered in the correlations used in the fti tracking model<br />

and should be treated parametrically. Default= 90 <strong>for</strong> walls; “cyltht”/4 <strong>for</strong><br />

cylindrical ro<strong>of</strong>s or floors; and 60 <strong>for</strong> hemispherical ro<strong>of</strong>s or floors. (degrees)<br />

the film (i.e., channel) width at the horizontal equal-area line on the structure<br />

inner face. The variable “width” corresponds to the variable w, discussed in<br />

Section 10.2.2.1. Default= length selected according to the structure type<br />

and orientation. Defaults are “slarea’’/’’chrlen”<strong>for</strong> a slab in any orientation,<br />

ZRI“cyltht”/180 <strong>for</strong> a wall cylinder, and 2(’’cylht”) <strong>for</strong> a ceiling or floor<br />

Rev O 14-89 6/30/97

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