Performance Prediction and Design of Stratospheric Propeller

Applied Sciences

Cong Xie¹  Zhe Wu¹  Guoquan Tao¹ 

[1] School of Aeronautics Science and Engineering, Beihang University (BUAA), Beijing 100191, China;

关键词: performance prediction;    propeller design;    stratospheric propeller;   

DOI  :  10.3390/app11104698

来源: DOAJ

【 摘 要 】

In this paper, a performance prediction method is proposed for the design of a stratospheric propeller. The Spalart–Allmaras (S–A) model was used to calculate the airfoil performance of FX63, and the polynomial fitting method was utilized to establish the airfoil database of the lift and drag coefficient. A computational fluid dynamics (CFD) model was applied at different altitudes to prove the feasibility of the method. The CFD results were compared with the results of the vortex theory and prediction; the prediction result accuracy was improved compared with that of the vortex theory over a greater range of advance ratios. The airfoil performance data requirements and the number of iterative calculations were reduced. These results indicate that the proposed propeller design meets the requirements of stratospheric airship propulsion systems.

【 授权许可】

Unknown