修正κ-εモデルの直円管内旋回乱流への適用

書誌事項

タイトル別名
  • Application of Modified κ-ε Models to Turbulent Swirling Flow in a Straight Pipe
  • 修正k-eモデルの直円管内旋回乱流への適用
  • シュウセイ k e モデル ノ チョクエンカン ナイ センカイ ランリュウ エ ノ テキヨウ

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Recently, the authors proposed a modified κ-ε model, applied it to flat plate boundary layer and stern flow, and improved prediction accuracy of mean flow field with longitudinal vortex. The modified κ-ε model is also applied to turbulent swirling flow in a straight pipe in order to express swirling flow more accurately. The modified κ-ε results are validated through comparisons with experiments, a standard κ-ε results, and a computational results for Nisizima-Yokoi. The conclusion is that the modified κ-ε results show some improvements of tangential velocity W and reduction of axial velocity U near the core region.

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