Physical Modeling and Numerical Simulation of Subcooled Boiling in One- and Three-Dimensional Representations of Bundle Geometry

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<BR>Numerical simulation of subcooled boiling in one-dimensional geometry with the Homogeneous Equilibrium Model (HEM) may yield difficulties related to the very low sonic velocity associated with the HEM. These difficulties do not arise with subcritical flow. Possible solutions of the problem include introducing a relaxation of the vapor production rate. Three-dimensional simulations of subcooled boiling in bundle geometry typical of fast reactors can be performed by using two systems of conservation equations, one for the HEM and the other for a Separated Phases Model (SPM), with a smooth transition between the two models. The suitability of this approach for modeling subcooled boiling in three dimensional geometry has been proved by simulating numerically two selected experiments in 7- and 37-pin electrically heated bundles typical of fast reactor subassemblies.

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  • Journal of nuclear science and technology

    Journal of nuclear science and technology 34(1), 30-40, 1997-01-25

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002076173
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • NDL 記事登録ID
    4131754
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A460
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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