3차원 소형축류홴의 공력특성에 대한 난류모델평가

Abstract

Abstract ：The steady-state, incompressible and three-dimensional numerical analysis was carried out to evaluate turbulent models on the aerodynamic performance of a small-size axial fan(SSAF). The prediction performance on the static pressure of all turbulent models is going downhill at the high static pressure and low flowrate region, but has improved at the axial flow region. In consequence, all turbulent models predict the static pressure coefficient with an error performance less than about 4% after the region of the flowrate coefficient of about 0.14. Especially, the turbulent model of SST k-ω shows the best prediction performance equivalent to an error performance less than about 2% on the static pressure. Key Words ：Aerodynamic Performance, Flow Coefficient, Operating Point, Power Coefficient, Small-Size Axial Fan(SSAF), Sliding Mesh, Static Pressure Coefficient, Steady-State, Turbulence Model *†김장권(교신저자) : 군산대학교 동력기계시스템공학과E-mail : flowkim@kunsan.ac.kr, Tel : 063-469-1848** 오석형 : 군산대학교 기계공학부*†Jang-Kweon Kim(corresponding author) : Department of Power System Engineering, Kunsan National University.E-mail : flowkim@kunsan.ac.kr, Tel : 063-469-1848** Seok-Hyung Oh : School of Mechanical Engineering, Kunsan National University.