| Summary: | 碩士 === 國立臺灣大學 === 機械工程學研究所 === 103 === This paper aims to establish a complete quadcopter flying flow model and
observe the flow field of lift variation, the flight flow model uses quadcopter hovering
flight as the basic infrastructure, added with the standard external flow field to
simulate the flow field when hovering. First, according to the literature review, the
research focus on control and efficiency, and has not been studied for its flight flow
field. Therefore, in order to observe easily the changes in the lift of quadcopter rotor
rotation, the research use commercial product DJI F450 as the main object and each
rotor blade set the same location in the analysis software-Autodesk Simulation CFD.
This simulation software uses transient analysis to analyze the whole flow field and
adjust the wind speed and direction, in order to analyze the impact of the quadcopter.
The results of this study show when hovering flight, the horizontal wind and -30
degrees wind direction (the -30 degrees means the angle between the wind blowing
from top to bottom) causes the lift differential (Dissymmetry of lift) most significant.
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