scholarly journals Numerical Simulation of Propeller Slipstream Effect on A Propeller-driven Unmanned Aerial Vehicle

2012 ◽  
Vol 31 ◽  
pp. 150-155 ◽  
Author(s):  
Weijia Fu ◽  
Jie Li ◽  
Haojie Wang
Keyword(s):  
Numerical Simulation ◽  
Unmanned Aerial Vehicle ◽  
Aerial Vehicle

Numerical Simulation and Experimental Verification of the Deposition Concentration of an Unmanned Aerial Vehicle

2019 ◽  
Vol 35 (3) ◽  
pp. 367-376 ◽  
Author(s):  
Qiang Shi ◽  
Hanping Mao ◽  
Xianping Guan
Keyword(s):  
Numerical Simulation ◽  
Flow Field ◽  
Unmanned Aerial Vehicle ◽  
Simulation Analysis ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Utilization Rate ◽  
Droplet Deposition ◽  
Aerial Vehicle ◽  
Motion Characteristics

Abstract. To analyze the droplet deposition under the influence of the flow field of an unmanned aerial vehicle (UAV), a hand-held three-dimensional (3D) laser scanner was used to scan 3D images of the UAV. Fluent software was used to simulate the motion characteristics of droplets and flow fields under the conditions of a flight speed of 3 m/s and an altitude of 1.5 m. The results indicated that the ground deposition concentration in the nonrotor flow field was high, the spray field width was 2.6 m, and the droplet deposition concentration was 50 to 200 ug/cm2. Under the influence of the rotor flow field, the widest deposition range of droplets reached 12.8 m. Notably, the droplet deposition uniformity worsened, and the concentration range of the droplet deposition was 0 to 500 ug/cm2. With the downward development of the downwash flow field, the overall velocity of the flow field gradually decreased, and the influence interval of the flow field gradually expanded. In this article, the droplet concentration was verified under simulated working conditions by a field experiment, thereby demonstrating the reliability of the numerical simulation results. This research could provide a basis for determining optimal UAV operating parameters, reducing the drift of droplets and increasing the utilization rate of pesticides. Keywords: Unmanned aerial vehicle (UAV), Aerial application, Downwash flow field, Droplet deposition, Simulation analysis.

Numerical simulation of a flow around an unmanned aerial vehicle

Mechanika ◽  
2011 ◽  
Vol 17 (2) ◽  
Author(s):  
S. M. A. Meftah ◽  
B. Imine ◽  
O. Imine ◽  
L. Adjlout
Keyword(s):  
Numerical Simulation ◽  
Unmanned Aerial Vehicle ◽  
Aerial Vehicle

scholarly journals Numerical Simulation of the Motion of an Unmanned Aerial Vehicle

2018 ◽  
Vol 221 ◽  
pp. 05003
Author(s):  
Il’ya O. Akimov ◽  
Vsevolod V. Koryanov
Keyword(s):  
Numerical Simulation ◽  
Mathematical Model ◽  
Unmanned Aerial Vehicles ◽  
Unmanned Aerial Vehicle ◽  
Software Package ◽  
Aerial Vehicles ◽  
Aerial Vehicle ◽  
Execution Environment ◽  
Controlled Motion

Unmanned aerial vehicles are used for research in many areas: photography and video shooting and so on. The development of unmanned aerial vehicles is directly related to the development of airspace. Today, a mathematical model is required that would describe the movement of such an aircraft with the purpose of predicting, correcting and optimizing it. The paper presents the results of a study of the controlled motion of an unmanned multi-rotor aircraft using the example of a quadrocopter. The study included the development of a law governing the apparatus and its modeling in the form of a software package. The structure of the autopilot, its main contours and parameters of these circuits are considered. After determining the necessary characteristics of the autopilot, modeling of the controlled motion of the quadrocopter in the execution environment was carried out.

Numerical Simulation of the Vertical Landing of Unmanned Aerial Vehicle with Ducted Fan Propulsors by Eddy-Resolving Methods

2020 ◽  
Vol 63 (4) ◽  
pp. 776-780
Author(s):  
D. V. Rybakov ◽  
P. S. Chernyshov ◽  
L. O. Vokin ◽  
N. V. Prodan
Keyword(s):  
Numerical Simulation ◽  
Unmanned Aerial Vehicle ◽  
Ducted Fan ◽  
Aerial Vehicle ◽  
Vertical Landing

Comparative Analysis of Propulsive System in Multi-Rotor Unmanned Aerial Vehicle

2019 ◽  
Author(s):  
Balaji Sonaimuthu ◽  
Prabhagaran Panchalingam ◽  
Vijayanandh Raja
Keyword(s):  
Numerical Simulation ◽  
Unmanned Aerial Vehicle ◽  
Pitch Angle ◽  
Design Methodology ◽  
Operating Efficiency ◽  
Forward Speed ◽  
Normal Functioning ◽  
Convergent Nozzle ◽  
Aerial Vehicle ◽  
Ansys Workbench

Abstract In an advanced Multi-rotor Unmanned Aerial Vehicle (UAV), the existing methodology of the propeller and its parametric modification leads to provide the various performance characteristics by inducing the operating efficiency. The subsisting solution for obtaining the thrust, rate of climb and forward speed by proliferating the propeller configuration and modification the design aspects in propeller by varying the pitch angle and consisting parameters in a Multi-rotor UAV. Instead of adding or modifying the design aspects, this article recommends the propeller with attaching Convergent-Divergent (C-D) Nozzle duct, which leads to producing the augmented thrust efficiency than the normal functioning system. And the comparison of the propeller with and without attaching the convergent nozzle duct, divergent nozzle duct, C-D nozzle duct has been analyzed using the numerical simulation and scrutinizing the optimized conceptual design of propeller is done with the help of ANSYS Workbench, where the design methodology is modeled by CATIA. By the result of the simulation, it leads to provide the efficient characteristics and design aspects of the Multi-rotor Unmanned Aerial Vehicle.

Research on knocking characteristics of kerosene spark-ignition engine for unmanned aerial vehicle (UAV) by numerical simulation

2019 ◽  
Vol 9 ◽  
pp. 1-10 ◽  
Author(s):  
Jin Li ◽  
Lei Zhou ◽  
Zhenfeng Zhao ◽  
Xiaolin Wang ◽  
Fujun Zhang
Keyword(s):  
Numerical Simulation ◽  
Unmanned Aerial Vehicle ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Aerial Vehicle

Numerical Simulation and Optimization for Combustion of an Opposed Piston Two-Stroke Engine for Unmanned Aerial Vehicle (UAV)

2020 ◽  
Author(s):  
Lei Zhou ◽  
Hao Li ◽  
Zeyu Chen ◽  
Zhenfeng Zhao ◽  
Fujun Zhang
Keyword(s):  
Numerical Simulation ◽  
Unmanned Aerial Vehicle ◽  
Simulation And Optimization ◽  
Aerial Vehicle ◽  
Stroke Engine

Research on dropping test and numerical simulation for unmanned aerial vehicle

2021 ◽  
pp. 1-17
Author(s):  
Chi Chen ◽  
Yazhou Guo ◽  
Jun Liu ◽  
Jingyu Yu ◽  
Yulong Li ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Unmanned Aerial Vehicle ◽  
Aerial Vehicle
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