Numerical simulation of flow around the Colorado micro aerial vehicle

2005 ◽  
Author(s):  
Daniel Gyllhem ◽  
Kamran Mohseni ◽  
Dale Lawrence ◽  
Philippe Geuzaine
Keyword(s):  
Numerical Simulation ◽  
Micro Aerial Vehicle ◽  
Aerial Vehicle

scholarly journals Numerical simulation of the aerodynamic performance of a novel micro-aerial vehicle mimicking a locust

2021 ◽  
Author(s):  
Mohamed A. Mohamed ◽  
Talal Maksoud ◽  
Rodney J. Santos ◽  
Mohamed Hefny Salim ◽  
Mohamed F.C. Esmail
Keyword(s):  
Numerical Simulation ◽  
Aerodynamic Performance ◽  
Micro Aerial Vehicle ◽  
Aerial Vehicle

scholarly journals Beneficial wake-capture effect for forward propulsion with a restrained wing-pitch motion of a butterfly

2021 ◽  
Vol 8 (8) ◽  
pp. 202172
Author(s):  
You-Jun Lin ◽  
Sheng-Kai Chang ◽  
Yu-Hsiang Lai ◽  
Jing-Tang Yang
Keyword(s):  
Experimental Data ◽  
Numerical Simulation ◽  
Small Amplitude ◽  
Capture Effect ◽  
Wake Region ◽  
Micro Aerial Vehicle ◽  
Pitch Motion ◽  
Thrust Generation ◽  
Aerial Vehicle ◽  
Induced Flow

Unlike other insects, a butterfly uses a small amplitude of the wing-pitch motion for flight. From an analysis of the dynamics of real flying butterflies, we show that the restrained amplitude of the wing-pitch motion enhances the wake-capture effect so as to enhance forward propulsion. A numerical simulation refined with experimental data shows that, for a small amplitude of the wing-pitch motion, the shed vortex generated in the downstroke induces air in the wake region to flow towards the wings. This condition enables a butterfly to capture an induced flow and to acquire an additional forward propulsion, which accounts for more than 47% of the thrust generation. When the amplitude of the wing-pitch motion exceeds 45°, the flow induced by the shed vortex drifts away from the wings; it attenuates the wake-capture effect and causes the butterfly to lose a part of its forward propulsion. Our results provide one essential aerodynamic feature for a butterfly to adopt a small amplitude of the wing-pitch motion to enhance the wake-capture effect and forward propulsion. This work clarifies the variation of the flow field correlated with the wing-pitch motion, which is useful in the design of wing kinematics of a micro-aerial vehicle.

scholarly journals Numerical Simulation of a Flapping Micro Aerial Vehicle Through Wing Deformation Capture

AIAA Journal ◽  
2018 ◽  
Vol 56 (8) ◽  
pp. 3257-3270 ◽  
Author(s):  
W. B. Tay ◽  
J. H. S. de Baar ◽  
M. Percin ◽  
S. Deng ◽  
B. W. van Oudheusden
Keyword(s):  
Numerical Simulation ◽  
Micro Aerial Vehicle ◽  
Aerial Vehicle ◽  
Wing Deformation

Energy-Based Design of Reconfigurable Micro Aerial Vehicle (MAV) Flight Structures

2012 ◽  
Author(s):  
James Joo ◽  
Gregory Reich ◽  
James Elgersma ◽  
Kristopher Aber
Keyword(s):  
Micro Aerial Vehicle ◽  
Aerial Vehicle ◽  
Energy Based Design

scholarly journals Run Your Visual-Inertial Odometry on NVIDIA Jetson: Benchmark Tests on a Micro Aerial Vehicle

2021 ◽  
pp. 1-1
Author(s):  
Jinwoo Jeon ◽  
Sungwook Jung ◽  
Eungchang Lee ◽  
Duckyu Choi ◽  
Hyun Myung
Keyword(s):  
Micro Aerial Vehicle ◽  
Benchmark Tests ◽  
Aerial Vehicle

scholarly journals Towards the Development of an Automatic UAV-Based Indoor Environmental Monitoring System: Distributed Off-Board Control System for a Micro Aerial Vehicle

2021 ◽  
Vol 11 (5) ◽  
pp. 2347 ◽  
Author(s):  
Jorge Solis ◽  
Christoffer Karlsson ◽  
Simon Johansson ◽  
Kristoffer Richardsson
Keyword(s):  
Control System ◽  
Environmental Monitoring ◽  
Monitoring System ◽  
Target Location ◽  
Flight Time ◽  
Distributed Control System ◽  
Micro Aerial Vehicle ◽  
Environmental Monitoring System ◽  
Rapid Changes ◽  
Aerial Vehicle

This research aims to develop an automatic unmanned aerial vehicle (UAV)-based indoor environmental monitoring system for the acquisition of data at a very fine scale to detect rapid changes in environmental features of plants growing in greenhouses. Due to the complexity of the proposed research, in this paper we proposed an off-board distributed control system based on visual input for a micro aerial vehicle (MAV) able to hover, navigate, and fly to a desired target location without considerably affecting the effective flight time. Based on the experimental results, the MAV was able to land on the desired location within a radius of about 10 cm from the center point of the landing pad, with a reduction in the effective flight time of about 28%.

Energy absorbed ability and damage analysis for honeycomb sandwich material of bio-inspired micro aerial vehicle under low velocity impact

2020 ◽  
pp. 095440622097542
Author(s):  
Jianxun Du ◽  
Peng Hao ◽  
Mabao Liu ◽  
Rui Xue ◽  
Lin’an Li
Keyword(s):  
Honeycomb Structure ◽  
Low Velocity Impact ◽  
Parameter Study ◽  
Low Velocity ◽  
Micro Aerial Vehicle ◽  
Thin Walled Structures ◽  
Wide Range ◽  
Aerial Vehicle ◽  
Thin Walled ◽  
The Impact

Because of the advantages of light weight, small size, and good maneuverability, the bio-inspired micro aerial vehicle has a wide range of application prospects and development potential in military and civil areas, and has become one of the research hotspots in the future aviation field. The beetle’s elytra possess high strength and provide the protection of the abdomen while being functional to guarantee its flight performance. In this study, the internal microstructure of beetle’s elytra was observed by scanning electron microscope (SEM), and a variety of bionic thin-walled structures were proposed and modelled. The energy absorption characteristics and protective performance of different configurations of thin-walled structures with hollow columns under impact loading was analyzed by finite element method. The parameter study was carried out to show the influence of the velocity of impactor, the impact angle of the impactor and the wall thickness of honeycomb structure. This study provides an important inspiration for the design of the protective structure of the micro aerial vehicle.

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