Open AccessAerodynamic Performance Characterization and Structural Analysis of Slotted Propeller: Part A Effect of Position
Author(s) -
Aravind Seeni
Publication year - 2020
Publication title -
incas buletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.282
H-Index - 10
eISSN - 2247-4528
pISSN - 2066-8201
DOI - 10.13111/2066-8201.2020.12.2.16
Subject(s) - propeller , thrust , chord (peer to peer) , aerodynamics , structural engineering , blade pitch , materials science , engineering , marine engineering , mechanical engineering , aerospace engineering , computer science , turbine , distributed computing
Novel slotted propeller design performance is presented in terms of thrust coefficient, power coefficient and efficiency by utilizing ANSYS Fluent. The effects of slotted positions were discussed with respect to baseline APC Slow Flyer 10’ x 7’ configurations. Seven slot locations with respect to chord length(c) namely 12.5%c, 25%c, 37.5%c, 50%c, 62.5%c, 75%c and 87.5%c were tested. The result shows that introduction of slot along the propeller blade increases the thrust coefficient, in the range of 0.1% to 4.74% for low advance ratios. However, increase in thrust coefficient also increases power coefficient compared to baseline design, hence reducing propeller efficiency. In addition, structural integrity of the blade was tested. The pressure distribution of the propeller blade demonstrated higher pressure on the back section, and lower pressure at the front section which results in thrust. In addition, the result shows that the pressure distribution is highly influenced by changes in advance ratio. The analysis shows that the novel propeller design managed to withstand stress and strain breaking point when operated at high advance ratio.