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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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Presently, DCH and other nongaseous atmospheric materials, with the exception <strong>of</strong> the coolant<br />

liquid, may not be specified in the atmosphere initial conditions. Note that the amount <strong>of</strong> coolant ~<br />

liquid may be specified indirectly through QUALITY or SATRAT values corresponding to a twophase<br />

initial condition. Also, if the amount <strong>of</strong> coolant vapor specified is too large to exist as vapor<br />

only under equilibrium conditions, the mass in excess <strong>of</strong> the saturated vapor mass will be placed in<br />

the liquid phase, and a diagnostic will be given.<br />

***** ***** ***** ***** ***** ***********************************************<br />

ATMOS=nma<br />

EOI<br />

TGAS=tgas<br />

[PGAS = pgas]<br />

[{QUALITY=xqual or SATRAT=satrat or SATURATE}]<br />

[{MOLES (ogas=xmoles) or MOLEFRAC (ogas=yfrac) or<br />

MASSES (ogas=xmass) or MASSFRAC (ogas=xfrac)}]<br />

[SOURCE=nso<br />

(onarne=n<br />

[DCHTYPE={ATMOSBIN or TRAPBIN or ENTRAIN}]<br />

[DCHBIN=isrbin] [IFLAG={l or 2}]<br />

T=(times) MASS=(masses) {TEMP=(temps) or ENTH=(enths)}<br />

EOI)]<br />

***** ***** ***** ***** ***** ***********************************************<br />

ATMOS the keyword to initiate input <strong>of</strong> atmosphere initial conditions and sources.<br />

nma the number <strong>of</strong> gases initially present in the atmosphere. This number should<br />

include the coolant vapor if its presence is implied through use <strong>of</strong> the<br />

QUALITY, SATRAT, or SATURATE keywords.<br />

TGAS the initial atmosphere temperature, which is always required. A positive<br />

= tgas value must be specified. A temperature above the critical temperature is not<br />

allowed if coolant vapor is initially present and its amount is specified in<br />

terms <strong>of</strong> a saturation condition. (K)<br />

PGAS<br />

= pgas<br />

the initial pressure <strong>of</strong> the atmosphere, which is required if (1) MASSES or<br />

MOLES is not specified and (2) the coolant saturation condition is not given<br />

through either the QUALITY, SATRAT, or SATURATE keywords, along<br />

with the coolant vapor (H20V) mass or mole fraction. If MASSES or<br />

MOLES is specified, the initial pressure will be calculated from the<br />

constituent masses. If the saturation condition is given, along with the<br />

coolant vapor fraction, the gas pressure will be extrapolated from the vapor<br />

pressure, and the specified vapor and noncondensable fractions, if any. (Pa)<br />

Rev. O 14-70 6/30/97

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