루버핀형 열교환기의 유동 및 열전달 특성에 관한 해석적 연구

Numerical analysis was conducted to investigate flow and heat transfer characteristics which were influenced by louver pitch, fin pitch, louver angle and inlet velocity in the range of Lp=1.0~2.0㎜, Fp/Lp=1.25~2.0, θ=25~45°, Vi=1~15㎧. In addition, standard k-e turbulent modelling was carried out to compare with laminar modelling. From the result of this numerical analysis, Nu became smaller as Lp was longer or Fp was wider. C_D became smaller as Lp was longer, Fp was wider or θ was smaller but it was little affected by inlet velocity.