Title of article :
Air–steamleakagethroughcracksinconcretewallsOriginalResearchArticle
Author/Authors :
H.Simon، نويسنده , , G.Nahas، نويسنده , , N.Coulon، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Abstract :
InthecontextofasevereaccidentinaPWRnuclearplant,theevaluationoftheleakagethroughthecontainmentwallremainsakeypointofthesafetyanalysis.Herewecalculatetheleakageofanairsteammixturethroughatraversingcracktakingintoaccountcondensation.A40htesthasbeenperformedonarepresentativeconcreteslabwithmeasurementsofcrackopeningsandflowrates.TheCAST3Mcodeenablesustosimulatethistestbymakingthermo-mechanicalcalculationsandcalculationoftheleakageflowrate.Thermo-mechanicalcalculationsprovidedataneededbytheleakagecalculationswhicharenotmeasurableintheexperiment.Thesearetheinternalcrackprofiles(variationoftheopeningwiththecurvilinearcoordinateofthecrackinsidetheconcreteslab).Thermo-mechanicalcalculationsaredifficulttoperformbecauseboundaryconditionsofthetestarecomplicated.Leakagecalculationsareperformedwithvarioushypothesesfortheinternalcracksprofiles.Acoefficientisappliedonthefrictionfactortotakeintoaccountadditionalcomplexityofthecrackgeometry.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
