Proposal of an Effective Initial Guess Scheme for Higher Harmonic Mode Calculation of Boiling Water Reactor Cores

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The technique of producing the initial flux guess in resolving the higher harmonic modal flux of a heterogeneous reactor core was presented based on the Ringhals-1 core data. From these studies, the initial guess scheme making use of a two-dimensional horizontal plane, Scheme C, showed excellent convergence performance. In Fig. 1(b), the magnitude of the relative error in Scheme C at the first 150 iterations was reduced to 1.0e<SUP>-2</SUP>, compared to 1.0e<SUP>+0</SUP> in the reference case. From the cost performance point of view, Scheme C is most efficient because it needs only two-dimensional fine mesh calculation. In addition, the results of our method was compared with the LPRM signals of Ringhals-1 test point in which the regional oscillation was observed and showed good agreement.

収録刊行物

  • Journal of nuclear science and technology  

    Journal of nuclear science and technology 34(7), 714-716, 1997-07-25 

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002077627
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    00223131
  • NDL 記事登録ID
    4260281
  • 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  CJP引用  NDL  J-STAGE 
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