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Construction of hydrophobic surface of impeller and study on its dynamic performance

Citation

Liu, Liang et al. (2022), Construction of hydrophobic surface of impeller and study on its dynamic performance, Dryad, Dataset, https://doi.org/10.5061/dryad.2280gb5tj

Abstract

Ducted fan is a potential solution to improve the dynamic performance of the Unmanned Aerial Vehicle (UAV). Based on the surface treatment and related hydrodynamic performance research of the ducted impeller, this paper aims to improve the anti-impedance noise ability of the impeller through surface roughness correction and reduce the material cost of products. After the selection of product materials, the chemical industry and computational fluid dynamics (CFD) fields are studied. Then, different methods are used to establish the ducted fan model, and the hydrophobic surface of the impeller is built based on the mussel bionic principle and the chemical surface coating process of fan products. Finally, experiments are conducted by using a scanning electron microscope (SEM), a UAV dynamic test platform, and a drying machine. The experimental results show that the maximum lift of the impellers manufactured by injection molding, Fused Deposition Modelling (FDM), and Selective Laser Sintering (SLS) methods is increased by 6.5%, 7.1%, and 9.4%, respectively. The CFD analysis results of different roughness models show that with the increase of roughness, the turbulent kinetic energy of the internal section of the duct fan increases to varying degrees. 

Funding

Jilin Scientific and Technological Development Program, Award: 20180201024SF