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@INPROCEEDINGS{Chae:1022272,
      author       = {Chae, Myeong-Seon and Paladino, Domenico and Kelm, Stephan},
      title        = {{A}nalyses of {J}et-{B}uoyant {F}low in a
                      {M}ulti-{C}ompartment {C}ontainment using an {O}pen-{S}ource
                      {S}olver},
      reportid     = {FZJ-2024-01390},
      year         = {2023},
      abstract     = {Hydrogen mixing and distribution in a nuclear power plant
                      containment during a postulated severeaccident is a
                      phenomenon with high safety relevance for current and
                      advanced LWR. The OECD/NEASETHproject was carried out to
                      generate the experimental data on basic containment
                      phenomena with therequired instrumentation to assess CFD and
                      LP codes.In this paper, we analyzed the PANDA Test 16 of the
                      OECD/NEA-SETH project by usingcontainmentFOAM which is a
                      tailored open-source CFD code package for containment
                      analysisdeveloped at Forschungszentrum Jülich (Germany)
                      based on OpenFOAM® v9. SETH Test 16 addressedsteam-air
                      mixture transport driven by jets and plumes in the
                      multi-compartment PANDA facility (Vessel 1,Vessel 2 and
                      Interconnecting pipe, IP) at Paul Scherrer Institut
                      (Switzerland). Steam is injected with 0.040kg/s and 140 ºC
                      in Vessel 1 which is initially filled with dry air at 108
                      ºC and created a wall-plume.Steam-air mixtures are vented
                      out from Vessel 2. The system pressure is constant at 1.3
                      bar for the wholetest duration (4000 s).Sensitive studies
                      have been performed considering different models for the
                      buoyancy turbulenceproduction and dissipation terms in k-w
                      SST model. The distribution of steam molar fraction
                      andtemperature are well expected above the injection tube in
                      Vessel 1 and over the height of Vessel 2. While,below the
                      injection tube in Vessel 1 some discrepancies between the
                      simulations and experimental resultswere
                      observed.KEYWORDSPANDA, Multi-compartment, Buoyancy
                      turbulence model, CFD, containmentFOAM},
      month         = {Jan},
      date          = {2023-01-20},
      organization  = {20th International Topical Meeting on
                       Nuclear Reactor Thermal Hydraulics
                       (NURETH-20), Washington (USA), 20 Jan
                       2023 - 25 Jan 2023},
      cin          = {IEK-14},
      cid          = {I:(DE-Juel1)IEK-14-20191129},
      pnm          = {1422 - Beyond Design Basis Accidents and Emergency
                      Management (POF4-142)},
      pid          = {G:(DE-HGF)POF4-1422},
      typ          = {PUB:(DE-HGF)1},
      url          = {https://juser.fz-juelich.de/record/1022272},
}