床面衝突噴流を用いた準置換換気空調方式に関する研究

書誌事項

タイトル別名
  • A STUDY ON SEMI-DISPLACEMENT VENTILATION USING IMPINGING JET FLOW
  • -CFDを用いた数値実験に基づくブロックモデルによる室内鉛直温度分布の予測-
  • - Prediction of vertical temperature distribution using block model based on numerical experiment by CFD -

抄録

 The Impinging Jet Ventilation System is an air-conditioning method to form thermal stratification. The final objective of this work is to establish a simplified prediction method of vertical temperature profile. As a numerical experiment, a parametric study on supply air momentum is first conducted by CFD in this paper. Based on those results, appropriate turbulent thermal diffusivity in the Block Model corresponding to the supply air condition is determined, because it is of great importance on vertical temperature distribution. The correlation between key dimensionless number regarding important design conditions and the turbulent thermal diffusivity are finally shown.

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