원심송풍기 날개 수에 따른 압력특성 연구

This paper describes the performance of centrifugal fan used for refuse collection system according to the number of splitters. To analyze the effect of blade numbers on fan performance, splitters installed between blades are introduced. The chord length of splitters is determined by 90 percent blade chord using the results of preliminary research. The fan performance is analyzed by three-dimensional Navier-Stokes analysis, and also compared to the results obtained by experiments. Throughout the experimental measurements and numerical simulation, fan performance can be increased by reducing the flow loss region mainly observed on the blade suction side. Pressure and efficiency are successfully increased by 3.6% and 4.4% compared to reference, respectively. Detailed flow pattern is also analyzed by the results of numerical simulation.