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A Study on Heat Transfer and Pressure Drop Characteristics of Staggered Tube Banks using CFD Analysis

CFD해석을 통한 엇갈린형 관군의 열전달 및 압력강하 특성에 관한 연구

  • Received : 2015.01.19
  • Accepted : 2015.05.07
  • Published : 2015.05.31

Abstract

In this study, the characteristics of heat transfer and pressure drop was theoretically analyzed by changing longitudinal pitch, bump phase, location of vortex generator about the staggered tube banks by applying SST (Shear Stress Transport) turbulence model of ANSYS FLUENT v.14. Before carrying out CFD (Computational Fluid Dynamics) analysis, It is presumed that the boundary condition is the tube surface temperature of 363 K, the inlet air temperature of 313 K and the inlet air velocity of 5-10 m/s. The results indicated that the heat transfer coefficient is not affected by the longitudinal pitch and the bump phase of circle type was more appropriate than serrated type in the characteristics of heat transfer and pressure drop. Additionally, in case of vortex generator location, the heat transfer characteristics showed that forward location of tube was more favorable 4.6% than backward location.

Keywords

Bump Shapes;Heat Transfer;Pressure Drop;Staggered Tube Bank;Vortex Generator

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