| Summary: | 碩士 === 國立成功大學 === 機械工程學系 === 89 === ABSTRACT
The purpose of this paper is to design the cooling fan to exclude the heat generated by the CPU of a notebook. The parameters of fan’s geometry are computated. The parameters includes the ratio entry and exit diameters, rotational speed, blade angles, number of blade, and shape of bland. The NACA wing sections are chosen as the shape of bland. The overall fan’s geometry is generated via the Pro/E software. The 3D structured grids of the cascade is computated and saved in three kings of data files which can be read by CAE software directly. The proposed method has more adventadges than usual ways. The similar theorem is studied. The performance of a fan can be predicted via the similar relations. Finally, the analysis of the free vibration and stress of a rotating blade is investigated.
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