2450 k-ε2 方程式乱流モデルを用いた PWR 燃料集合体の燃料棒ギャップにおける乱流混合の評価
スポンサーリンク
概要
- 論文の詳細を見る
The subchannel analysis used in the DNB design of PWR fuel assembly usually employs the thermal diffusion model to evaluate the inter-subchannel transport of enthalpy. The experimental constant in that model includes both the effect of the convection and turbulence at the rod gap affected by the Mixing Vane of the grid and so on. And this causes the constant to be decided by the experiment with the full-length mockup of fuel assembly each time when the design of the grid is revised. Thus the turbulent mixing at the typical rod gap in the PWR fuel assembly is estimated by the k-ε Two Equation Turbulent Model for the needs of more mechanistic turbulent mixing model.
- 一般社団法人日本機械学会の論文
- 2000-07-31
著者
関連論文
- 管群内乱流のLESと二次流れの駆動力の解析(流体工学,流体機械)
- 境界埋め込み法に整合するポアソン式の差分表現(流体工学,流体機械)
- 複雑形状境界を扱うLESのための高次精度境界埋め込み法(流体工学,流体機械)
- 2450 k-ε2 方程式乱流モデルを用いた PWR 燃料集合体の燃料棒ギャップにおける乱流混合の評価