Aerodynamic design and analysis of a propeller for a micro air vehicle

Cho, Leesang; Yoon, Jaemin; Han, Cheolheui

doi:10.1007/bf02916279

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…Early fixed wing MAVs often used commercially available propellers because of their convenience, but peak efficiencies were sometimes as low as 30%. [4][5][6] It was discovered that efficiency could be enhanced by modifying the geometries of these propellers, but these efforts did not lead to significant improvements in the design process. Of the limited studies on MAV propeller design in the literature, most use a vortex theory-based minimum induced loss (MIL) optimization.…”

mentioning

confidence: 99%

Design, Fabrication, Analysis, and Dynamic Testing of a Micro Air Vehicle Propeller

Smedresman

Yeo

Shyy

2011

29th AIAA Applied Aerodynamics Conference

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Propellers are critical for the performance of fixed wing micro air vehicles (MAVs). Due to the low Reynolds number nature of MAV flight, the established propeller design practice needs to be reexamined. Experimental data is required to validate predictions; however, few studies have been conducted because the small dimensions and forces of the propellers make fabrication and reliable testing extremely challenging. The present study describes the development of a fabrication technique and a test stand, and the use of aerodynamic analyses to assess the performance of small fixed pitch propellers. Wind tunnel data for a single prototype propeller showed lower thrust, torque, and efficiency than predicted by commercially available vortex theory codes. Potential explanations for these discrepancies include inaccuracy of the airfoil coefficients, error resulting from approximations in the vortex theory, and inaccuracies related to fabrication.

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mentioning

confidence: 99%

Design, Fabrication, Analysis, and Dynamic Testing of a Micro Air Vehicle Propeller

Smedresman

Yeo

Shyy

2011

29th AIAA Applied Aerodynamics Conference

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“…In Refs. [10,11], practical value ranges for propeller efficiency of the mini and micro aerial aircraft are given. It must be noted that the above equation is written in British units system.…”

Section: Applied Mechanics and Materials Vol 629mentioning

confidence: 99%

Performance Calculations within the Conceptual Design Process of Hand-Launched Aircraft

Nadji

Banazadeh

2014

AMM

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Matching diagram is a key part of the conceptual design process to determine the wing area and the required power. However, it requires drag polar estimation and the assumption of maximum lift coefficient. In case of conventional manned aircraft, early estimation techniques are based on statistical data that are not suitable for hand-launched aircraft. In this study, it has been attempted to present the performance calculations and a proper conceptual design model by acquiring sound values for the aerodynamic coefficients in low Reynolds number, using statistical wetted area as well as a raw design of fuselage, wing and tails. The process is applied to a sample scenario and the results are evaluated.

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“…In the structure design of UAV, the design of propeller is the key to the design of rotor UAV. The aerodynamic performance analysis of the designed propeller is of great significance to the research and improvement of UAV (Lan et al , 2020; Choi, 2012; Cho et al , 2006).…”

Section: Introductionmentioning

confidence: 99%

Design and aerodynamic characteristics analysis of propellers for a novel rescue unmanned aerial vehicle

Guan,

2023

AEAT

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Purpose To solve the shortcomings of existed search and rescue drones, search and rescue the trapped people trapped in earthquake ruins, underwater and avalanches quickly and accurately, this paper aims to propose a four-axis eight-rotor rescue unmanned aerial vehicle (UAV) which can carry a radar life detector. As the design of propeller is the key to the design of UAV, this paper mainly designs the propeller of the UAV at the present stage. Design/methodology/approach Based on the actual working conditions of UAVs, this paper preliminarily estimated the load of UAVs and the diameters of propellers and designed the main parameters of propellers according to the leaf element theory and momentum theory. Based on the low Reynolds number airfoil, this paper selected the airfoil with high lift drag ratio from the commonly used low Reynolds number airfoils. The chord length and twist angle of propeller blades were calculated according to the Wilson method and the maximum wind energy utilization coefficient and were optimized by the Asymptotic exponential function. The aerodynamic characteristics of the designed single propeller and coaxial propeller under different installation pitch angles and different installation distances were analyzed. Findings The results showed that the design of coaxial twin propellers can increase the load capacity by about 1.5 times without increasing the propeller diameter. When the installation distance between the two propellers was 8 cm and the tilt angle was 15° counterclockwise, the aerodynamic characteristics of the coaxial propeller were optimal. Originality/value The novelty of this work came from the conceptual design of the new rescue UAV and its numerical optimization using the Wilson method combined with the maximum wind energy utilization factor and the exponential function. The aerodynamic characteristics of the common shaft propeller were analyzed under different mounting angles and different mounting distances.

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Aerodynamic design and analysis of a propeller for a micro air vehicle

Cited by 4 publications

References 8 publications

Design, Fabrication, Analysis, and Dynamic Testing of a Micro Air Vehicle Propeller

Design, Fabrication, Analysis, and Dynamic Testing of a Micro Air Vehicle Propeller

Performance Calculations within the Conceptual Design Process of Hand-Launched Aircraft

Design and aerodynamic characteristics analysis of propellers for a novel rescue unmanned aerial vehicle

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