Description of the VOF based pressure algorithm and application to XT-ADS like spallation target

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dc.contributor.authorMoreau, Vincent
dc.date.accessioned2014-02-25T09:56:50Z
dc.date.available2014-02-25T09:56:50Z
dc.date.issued2012-02
dc.description.abstractThe simulation of Heavy Liquid Metal Vacuum complex interfaces with Starccm+ from CD-Adapco using the Volume of Fluid (VOF) framework requires specifi c care. In a first part, we describe how we managed to deal with the high density ratio and the interface smearing in the context of three different windowless spallation targets. The interface smearing is controlled with a non-conservative condensation term. The second part is dedicated to the individuation of the relevant physical process leading to the interface sharpening and its inclusion in the set of constitutive equations. The methodology used has been to re-derive the VOF equations for momentum and phase transport from the constitutive phase equations. Two candidates for sharpening are individuated: baro-diffusion and surface tension effects. Only baro-diffusion is however likely to have the required strength in the foreseen applications.IT
dc.identifier.urihttp://hdl.handle.net/11050/652
dc.language.isoenIT
dc.subjectCFDIT
dc.subjectVOFIT
dc.subjecttwo-phaseIT
dc.subjectbaro-diffusionIT
dc.subjectsurface tensionIT
dc.subjectTHINSIT
dc.subject.een-cordisEEN CORDIS::FISICA E SCIENZE ESATTE::Matematica, statistica::Modellazione matematicaIT
dc.subject.een-cordisEEN CORDIS::ENERGIA::Fissione nucleare / fusione nucleare::Fissione nucleare / fusione nucleareIT
dc.subject.progettiProgetti::Bando competitivo/Grant::Finanziamento europeo/internazionale::EC FP7, FP6, FP5::THINS - Thermal hydraulics of innovative nuclear systemIT
dc.subject.programProgram::Energy and Environment::Process Engineering and Combustion (PEC)IT
dc.titleDescription of the VOF based pressure algorithm and application to XT-ADS like spallation targetIT
dc.typeReportIT
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