Numerical Simulations of the Effect of the Asymmetrical Bending of the Hindwings of a Hovering <i>C. buqueti</i> Bamboo Weevil with Respect to the Aerodynamic Characteristics
The airfoil structure and folding pattern of the hindwings of a beetle provide new transformation paths for improvements in the aerodynamic performance and structural optimization of flapping-wing flying robots. However, the explanation for the aerodynamic mechanism of the asymmetrical bending of a...
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| Format: | Article |
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MDPI AG
2022-11-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/13/11/1995 |
| _version_ | 1827644160511836160 |
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| author | Xin Li |
| author_facet | Xin Li |
| author_sort | Xin Li |
| collection | DOAJ |
| description | The airfoil structure and folding pattern of the hindwings of a beetle provide new transformation paths for improvements in the aerodynamic performance and structural optimization of flapping-wing flying robots. However, the explanation for the aerodynamic mechanism of the asymmetrical bending of a real beetle’s hindwings under aerodynamic loads originating from the ventral and dorsal sides is unclear. To address this gap in our understanding, a computational investigation into the aerodynamic characteristics of the flight ability of <i>C. buqueti</i> and the large folding ratio of their hindwings when hovering is carried out in this article. A three-dimensional (3D) pressure-based SST k-ω turbulence model with a biomimetic structure was used for the detailed analysis, and a refined polyhedral mesh was used for the simulations. The results show that the fluid around the hindwings forms a vortex ring consisting of a leading-edge vortex (LEV), wing-tip vortex (TV) and trailing-edge vortex (TEV). Approximately 61% of the total lift is generated during the downstroke, which may be closely related to the asymmetric bending of the hindwings when they are subjected to pressure load. |
| first_indexed | 2024-03-09T18:09:04Z |
| format | Article |
| id | doaj.art-9696c089c21542e18619642119a94666 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T18:09:04Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-9696c089c21542e18619642119a946662023-11-24T09:16:06ZengMDPI AGMicromachines2072-666X2022-11-011311199510.3390/mi13111995Numerical Simulations of the Effect of the Asymmetrical Bending of the Hindwings of a Hovering <i>C. buqueti</i> Bamboo Weevil with Respect to the Aerodynamic CharacteristicsXin Li0College of Mechanical and Electrical Engineering, Suqian University, Suqian 223800, ChinaThe airfoil structure and folding pattern of the hindwings of a beetle provide new transformation paths for improvements in the aerodynamic performance and structural optimization of flapping-wing flying robots. However, the explanation for the aerodynamic mechanism of the asymmetrical bending of a real beetle’s hindwings under aerodynamic loads originating from the ventral and dorsal sides is unclear. To address this gap in our understanding, a computational investigation into the aerodynamic characteristics of the flight ability of <i>C. buqueti</i> and the large folding ratio of their hindwings when hovering is carried out in this article. A three-dimensional (3D) pressure-based SST k-ω turbulence model with a biomimetic structure was used for the detailed analysis, and a refined polyhedral mesh was used for the simulations. The results show that the fluid around the hindwings forms a vortex ring consisting of a leading-edge vortex (LEV), wing-tip vortex (TV) and trailing-edge vortex (TEV). Approximately 61% of the total lift is generated during the downstroke, which may be closely related to the asymmetric bending of the hindwings when they are subjected to pressure load.https://www.mdpi.com/2072-666X/13/11/1995wing kinematicsflapping wing MAV3D scanningasymmetrical bendingCFD simulation |
| spellingShingle | Xin Li Numerical Simulations of the Effect of the Asymmetrical Bending of the Hindwings of a Hovering <i>C. buqueti</i> Bamboo Weevil with Respect to the Aerodynamic Characteristics Micromachines wing kinematics flapping wing MAV 3D scanning asymmetrical bending CFD simulation |
| title | Numerical Simulations of the Effect of the Asymmetrical Bending of the Hindwings of a Hovering <i>C. buqueti</i> Bamboo Weevil with Respect to the Aerodynamic Characteristics |
| title_full | Numerical Simulations of the Effect of the Asymmetrical Bending of the Hindwings of a Hovering <i>C. buqueti</i> Bamboo Weevil with Respect to the Aerodynamic Characteristics |
| title_fullStr | Numerical Simulations of the Effect of the Asymmetrical Bending of the Hindwings of a Hovering <i>C. buqueti</i> Bamboo Weevil with Respect to the Aerodynamic Characteristics |
| title_full_unstemmed | Numerical Simulations of the Effect of the Asymmetrical Bending of the Hindwings of a Hovering <i>C. buqueti</i> Bamboo Weevil with Respect to the Aerodynamic Characteristics |
| title_short | Numerical Simulations of the Effect of the Asymmetrical Bending of the Hindwings of a Hovering <i>C. buqueti</i> Bamboo Weevil with Respect to the Aerodynamic Characteristics |
| title_sort | numerical simulations of the effect of the asymmetrical bending of the hindwings of a hovering i c buqueti i bamboo weevil with respect to the aerodynamic characteristics |
| topic | wing kinematics flapping wing MAV 3D scanning asymmetrical bending CFD simulation |
| url | https://www.mdpi.com/2072-666X/13/11/1995 |
| work_keys_str_mv | AT xinli numericalsimulationsoftheeffectoftheasymmetricalbendingofthehindwingsofahoveringicbuquetiibambooweevilwithrespecttotheaerodynamiccharacteristics |