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Code Manual for CONTAIN 2.0 - Federation of American Scientists

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Table C-1 <strong>CONTAIN</strong> <strong>Code</strong> Release History<br />

<strong>Code</strong> Version MajorImprovements,NewModelsandItems<br />

(Date)<br />

(Aug!!984)<br />

Fwst<strong>of</strong>ficialrelease<strong>of</strong> code<br />

1.01 Modificationsto correctnonstandarduse <strong>of</strong> charactervariables<br />

(December1984)<br />

1.02 Modificationsto makecodecon<strong>for</strong>mto FORTRAN-77standard<br />

1.03<br />

(May 1985) Improvedlower-cell(pooland basemat)nodalizationprocess,and<br />

engineeringsafetysystemsmodels<br />

Add wateraerosoldepositioninto structuresurfacefilmlayer,time-dependent<br />

(Nove~~r 1985) aerosolsizedistributioninputparameters,and implicitflow solver<strong>for</strong> multi-cell<br />

gas transport<br />

Improvedatmosphere-to-structureradiationmodeland hydrogenbum tirnestep<br />

ad@ment, and methodto estimateliquidfilm boundarylayerinterface<br />

temperature<br />

1.05 Add carbonmonoxidecombustion,fissionproducttargetedreleaseand acceptance,<br />

(July 1986) chokedflow limit<strong>for</strong> intercellgas flow,and activationand deactivationkeywords<br />

<strong>for</strong> combustionmodel<br />

Improvedthermalproperties,bum completenesscorrelation,and flexibilityin<br />

specifyingcombustionbum parameters<br />

1.06 Add integratedimplementation<strong>of</strong> the CORCON-Mod2model<strong>for</strong> moltencore<br />

(February 1987) concreteinteraction(MCCI),VANESAmodel<strong>for</strong> aerosolgenerationand<br />

radioisotopereleasefrom MCCIS,waterdropoutmodelto removewaterfrom<br />

atmospherewithoutusing aerosoldynamicsmodel,and aerosolsettlingthrough<br />

flowpaths<br />

Improvedmodels<strong>for</strong> radiantheat transfer(netenclosuremodel)<br />

1.10 Add specializedmodels<strong>for</strong> boilingwaterreactorfeatures(safetyrelief valvesand<br />

(October 1987) pressuresuppressionpools),new flowpath type (engineeringvent)to provide<br />

addedflexibilityto plant nodalization,and userdefined materialproperties<br />

Improvedmethod<strong>for</strong> trackingradioisotopes,the heat conductionalgorithm<strong>for</strong><br />

lower-cellconcretefloor model,varioussolutiontechniquesincludingsemiimplicitcoupling<strong>of</strong><br />

the thermalradiationmodelwith flow equations,and<br />

automaticrecoveryfrom nonconvergencein the flow solver<br />

Rev O clo 6/30/97

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