Aerodynamic analysis of insect-like flapping wings in fan-sweep and parallel motions with the slit effect
| dc.contributor.author | Zhu, Zenggang | |
| dc.contributor.author | Zhao, Jingtai | |
| dc.contributor.author | He, Yuanyuan | |
| dc.contributor.author | Guo, Shijun | |
| dc.contributor.author | Chen, Si | |
| dc.contributor.author | Ji, Bing | |
| dc.date.accessioned | 2022-05-25T09:15:59Z | |
| dc.date.available | 2022-05-25T09:15:59Z | |
| dc.date.issued | 2022-05-23 | |
| dc.description.abstract | In this study, the aerodynamic performance of flapping wings using a parallel motion was investigated and compared with the insect-like “fan-sweep” motion, and the effect of adding a slit to the wings was analyzed. First, numerical simulations were performed to analyze the wing aerodynamics of two flapping motions with equivalent stroke amplitudes over a range of pitching angles based on computational fluid dynamics (CFD). The simulation results indicated that flapping wings with a rapid and short parallel motion achieved better lift and efficiency than those of the fan-sweep motion while maintaining the same aerodynamic characteristics regarding stall delay and leading-edge vortices. For a parallel motion with a pitching angle of 25° and 100 mm stroke amplitude, the wings generated an average lift of 8.4 gf with a lift-to-drag ratio of 1.06, respectively, which were 1.8% and 26% greater than those of the fan-sweep motion with a corresponding 96° stroke amplitude. This situation was reversed when the pitching angle and stroke amplitude were increased to 45° and 144° for the fan-sweep motion, which was equivalent to the parallel motion with a 150 mm stroke amplitude. The slit effect in the parallel motion was also evaluated, and the CFD results indicated that a slit width of 1 mm (1/50 wing chord) increased the lift of the wing by approximately 27% in the case of the 150 mm stroke amplitude. Further, the slit width slightly influenced the lift and aerodynamic efficiency. | en_UK |
| dc.identifier.citation | Zhu Z, Zhao J, He Y, et al., (2022) Aerodynamic analysis of insect-like flapping wings in fan-sweep and parallel motions with the slit effect, Biomimetic Intelligence and Robotics, Volume 2, Issue 2, June 2022, Article number 100046 | en_UK |
| dc.identifier.issn | 2667-3797 | |
| dc.identifier.uri | https://doi.org/10.1016/j.birob.2022.100046 | |
| dc.identifier.uri | https://dspace.lib.cranfield.ac.uk/handle/1826/17958 | |
| dc.language.iso | en | en_UK |
| dc.publisher | Elsevier | en_UK |
| dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
| dc.subject | Insect-like flapping wings | en_UK |
| dc.subject | Aerodynamic efficiency | en_UK |
| dc.subject | Fan-sweep | en_UK |
| dc.subject | Parallel flapping motion | en_UK |
| dc.subject | Wing slit | en_UK |
| dc.title | Aerodynamic analysis of insect-like flapping wings in fan-sweep and parallel motions with the slit effect | en_UK |
| dc.type | Article | en_UK |