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http://dx.doi.org/10.9726/kspse.2015.19.6.019

Large Eddy Simulation on the Aerodynamic Performance of Three-Dimensional Small-Size Axial Fan with the Different Depth of Bellmouth  

Kim, Jang-Kweon (Department of Power System Engineering, Kunsan National University)
Oh, Seok-Hyung (School of Mechanical Engineering, Kunsan National University)
Publication Information
Journal of Power System Engineering / v.19, no.6, 2015 , pp. 19-25 More about this Journal
Abstract
The unsteady-state, incompressible and three-dimensional large eddy simulation(LES) was carried out to analyze the aerodynamic performance of three-dimensional small-size axial fan(SSAF) with the different depth of bellmouth. The static pressure coefficients analyzed by LES predict a little bit larger than measurements except stall region regardless of the installation depth between SSAF and bellmouth. Moreover, static pressure efficiencies analyzed by LES show about maximum 30% at the actual operating point ranges, but measurements do not. Therefore, if the blades of conventional SSAF have some more rigidity and complete dynamic balance, the aerodynamic performance of SSAF will be some more improved. In consequence, LES shows the best prediction performance in comparison with any other Reynolds averaged Navier-Stokes(RANS) method.
Keywords
Aerodynamic Performance; Courant Number; Dynamic Subgrid-Scale; Flow Coefficient; Large Eddy Simulation(LES); Small-Size Axial Fan(SSAF); Static Pressure Coefficient; Static Pressure Efficiency;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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