Numerical simulation of the flow around a flapping-wing micro air vehicle in free flight
| Autor: | Manuel García-Villalba, E Hernández-Hurtado, Oscar Flores, M. Moriche |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Computer simulation
business.industry UAV Mechanical Engineering Flow (psychology) FLOW FIELD VISUALIZATION Aerospace Engineering Forward flight FLUID MECHANICS Computational fluid dynamics 01 natural sciences 010305 fluids & plasmas Flapping wing Computer Science::Robotics Physics::Fluid Dynamics Flight dynamics 0103 physical sciences Environmental science Free flight Micro air vehicle Aerospace engineering AERODYNAMICS CFD 010306 general physics business |
| Zdroj: | Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 236:468-476 |
| ISSN: | 2041-3025 0954-4100 |
| DOI: | 10.1177/0954410018800161 |
| Popis: | We present direct numerical simulations of the flow around a simplified model of a flapping-wing micro air vehicle in uncontrolled forward flight at low Reynolds number, including the vehicle dynamics. A simple model for the vehicle is employed, including wings, tail and fuselage. Only a symmetric flight condition will be discussed. The wing kinematics are externally imposed and the vehicle moves as a result of the aerodynamic forces and gravity. The simulations are initialized by keeping the vehicle fixed in space in the presence of a free-stream of constant speed, flapping the wings for several periods. The gravity is adjusted using the average lift during this initial transient, after which the vehicle is released. We analyze the initial stages after the release of the vehicle, placing emphasis on how the aerodynamic forces and the flow around the vehicle are modified once the vehicle is released. |
| Databáze: | OpenAIRE |
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