Wind tunnel tests of five propellers with different blade tip widths are carried at pitch angles between 20.5° and 40°. The aerodynamic performance are provided, which can be treated as a supplement of the high altitude airship propeller database. The influences of the blade planform and advance ratio on both power coefficient and propulsive efficiency are analyzed. It is found that at advance ratio below 0.8, the propeller with narrow tip has higher efficiency but limited power coefficient. While at advance ratio above 0.8, the propeller with wider tip has the advantages of higher power coefficient and acceptable efficiency. The variation of the propulsive efficiency with planform and advance ratio is dominated by the radial distributions of the airflow angle and interference angle.
Experimental investigations on high altitude airship propellers with blade planform variations
2018-12-01
9 pages
Article (Journal)
Electronic Resource
English
Effect of Advance Ratio and Blade Planform on the Propeller Performance of a High Altitude Airship
DOAJ | 2016
|Optimal design and experiment of propellers for high altitude airship
SAGE Publications | 2018
|RAPID AEROACOUSTIC PLANFORM DESIGN OPTIMIZATION OF INSTALLED PROPELLERS
British Library Conference Proceedings | 2022
|Airship-Type Crane Robot with Cycloidal Propellers
AIAA | 2006
|