| Citation: | WANG Dingqi, GAO Yang, WANG Zhaopeng. Research on analysis method of propeller windmill characteristics[J]. Journal of Aerospace Power, 2024, 39（12）：20220070 doi: 10.13224/j.cnki.jasp.20220070
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Taking a type of propeller as the research object, based on the characteristics of high-speed windmill and low-speed windmill in the steady state of the propeller and the characteristics of transient windmill during air start process, simulation calculations of different altitudes, true speeds, blade angles and rotating speeds were carried out. The windmill resistance of the propeller at different test conditions was given quantitatively. Through verification of the key points of the scaled-down model wind tunnel, the maximum error was 4.63%. Through correction of the utility factor and the zero-lift angle of attack in the standard propeller characteristics, the propeller characteristics were calculated iteratively. Based on the simulation and iterative calculation results, the data fusion method was used to put forward the optimal solution of the propeller windmill characteristics. The result showed that: for high-speed windmill, the propeller speed reached the maximum limits value; at true speed of 480 km/h, the blade angle was 30°, and coefficient of thrust was −0.36. For low-speed windmill, the blade angle was at limited angle; at the true speed of 350 km/h, the rotating speed was 990 r/min, and coefficient of thrust was −0.47. During the starting process, the resistance of the propeller windmill first increased and then decreased. When blade angle returned to 14°, the rotating speed was 970 r/min and the thrust was −
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