Next Article in Journal
Autocorrelation Modulation-Based Audio Blind Watermarking Robust Against High Efficiency Advanced Audio Coding
Previous Article in Journal
A Comparative Study of the Fitness and Trueness of a Three-Unit Fixed Dental Prosthesis Fabricated Using Two Digital Workflows
Previous Article in Special Issue
Aerial Grasping of an Object in the Strong Wind: Robust Control of an Aerial Manipulator
Article Menu

Export Article

Open AccessArticle

Aerodynamic Performance of Quadrotor UAV with Non-Planar Rotors

1,2,* and 1
1
School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China
2
Key Laboratory of Fluid Power and Intelligent Electro-Hydraulic Control (Fuzhou University), Fujian Province University, Fuzhou 350116, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(14), 2779; https://doi.org/10.3390/app9142779
Received: 4 June 2019 / Revised: 6 July 2019 / Accepted: 8 July 2019 / Published: 10 July 2019
(This article belongs to the Special Issue Autonomous Micro Aerial Vehicles: Methods and Applications)
  |  
PDF [13516 KB, uploaded 10 July 2019]
  |  

Abstract

The mobility of a quadrotor UAV is significantly affected by its aerodynamics, especially when the closely spaced rotors are applied in the multi-rotor system. This paper addresses the aerodynamic modeling of non-planar quadrotor UAV with various rotor spacing (1 d–2 d) and disk plane angle (0–50 deg). The inter-rotor interference and the power models are also proposed in this paper. In order to validate the non-planar model, a series of CFD analyses and experiments were conducted. The obtained results demonstrate that the flow field of the non-planar quadrotor is extremely complicated when the unsteady flow is involved. The pulsation of partial angle of attack and pressure distribution is formed when the blade passes through the vortex. The thrust is increasing significantly along with the tilt angle, resulting from the stronger outflow of the non-planar rotors, which is also leading the power increment. However, the thrust increment is not that obvious when the spacing is larger than 1.4 d. The experiments and the numerical simulation results provide consistent trends and demonstrate the effectiveness of the aerodynamic model of the non-planar quadrotor. The comparison with the traditional planar quadrotor validates that the proposed non-planar quadrotor has better aerodynamic and control performances with a larger power loading. View Full-Text
Keywords: quadrotors; aerodynamic configuration; numerical simulation; hover; aerodynamic interference; non-planar model quadrotors; aerodynamic configuration; numerical simulation; hover; aerodynamic interference; non-planar model
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Lei, Y.; Wang, J. Aerodynamic Performance of Quadrotor UAV with Non-Planar Rotors. Appl. Sci. 2019, 9, 2779.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top