0

Full Content is available to subscribers

Subscribe/Learn More  >

Analysis and Design of a Low Reynolds Propeller for Optimal Unmanned Aerial Vehicle (UAV) Flight

[+] Author Affiliations
Alan T. Mushynski

ETA Propellers, Milwaukee, WI

T. J. Johnson

ETA Propellers, Franklin, MI

Paper No. IMECE2017-71164, pp. V001T03A005; 11 pages
doi:10.1115/IMECE2017-71164
From:
  • ASME 2017 International Mechanical Engineering Congress and Exposition
  • Volume 1: Advances in Aerospace Technology
  • Tampa, Florida, USA, November 3–9, 2017
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5834-9
  • Copyright © 2017 by ASME

abstract

This paper presents a method for optimization of an airfoil and propeller for a small scale Unmanned Aerial Vehicle (UAV) operating in a low Reynolds number state. Operation at a low Reynolds number, generally less than 300,000, lowers the efficiency of the propeller due to greater drag forces on the airfoil. Most hovering-type small scale UAVs generate lift solely with the thrust created by the propellers, and their overall flight characteristics and performance are heavily influenced by propeller and motor efficiency. The method described in this paper generates and optimizes airfoils using the Class/Shape Function Transformation Technique (CST) for the airfoil geometry and a hybrid pattern and particle swarm optimizer to drive Xfoil as a panel method solver for lift and drag coefficients. It then uses a modified Blade Element Momentum Theory equation with a function minimum optimization to determine the propeller characteristics that provide the best figure of merit (FOM) for a hovering and rising thrust state from the optimized airfoils. The propellers are then modeled and analyzed using Computational Fluid Dynamics (CFD) to compare against the thrust and torque values obtained from the optimization program. The results from the CFD analysis indicate an increase of 18 percent in efficiency when compared to a similar stock propeller. Similar increases in efficiency results were obtained when the optimized propeller was manufactured and tested on a thrust stand against the stock propeller.

Copyright © 2017 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In