On development and validation of subcooled nucleate boiling models for openfoam foundation release

J. Peltola, T. Pättikangas, W. Bainbridge, R. Lehnigk, F. Schlegel

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    1 Citation (Scopus)

    Abstract

    Subcooled nucleate boiling capability was introduced to OpenFOAM 4.0 within the multiphase framework called reactingEulerFoam. Since then the capability has been further refined and extended in subsequent releases 5.0 and 6. The present implementation - available in OpenFOAM Foundation development release - includes the RPI wall boiling model with run time selectable nucleation site density and bubble departure diameter and frequency models. Runtime selectable wall heat transfer models for distribution of wall heat flux between gas and liquid phases are also included for non-equilibrium phase change simulations. Interfacial heat transfer and phase change are calculated with a two-resistance approach using user selectable heat transfer and saturation temperature models. For bubble diameter modelling algebraic, IATE and inhomogeneous class method models are supported. The present paper provides an overview of the thermal phase change modelling and related models and their implementation and compares simulation results obtained with different model combinations to publicly available experimental data from DEBORA experiments. The goal is to aid those that intend to use the publicly available reactingEulerFoam by providing a summary of the available models and demonstrations of a few modelling details. Tutorial cases based on the presented simulations will be made publicly available in future releases.

    Original languageEnglish
    Title of host publication18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2019
    PublisherAmerican Nuclear Society (ANS)
    Pages2149-2163
    Number of pages15
    Editioncd-rom
    ISBN (Electronic)978-0-89448-767-5
    Publication statusPublished - 1 Jan 2019
    MoE publication typeA4 Article in a conference publication
    Event18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2019 - Marriott Portland Downtown Waterfront, Portland, United States
    Duration: 18 Aug 201923 Aug 2019

    Conference

    Conference18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2019
    Abbreviated titleNURETH-18
    Country/TerritoryUnited States
    CityPortland
    Period18/08/1923/08/19

    Keywords

    • CFD
    • Condensation
    • OpenFOAM
    • Size distribution
    • Subcooled boiling

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