发布时间：2025-04-30

论文名称：Aerodynamics of ascending flight in fruitflies

发表刊物：Journal of Bionic Engineering

摘要：As a very basic flight mode, ascending flight is obviously of great importance to all kinds of manmade and natural fliers.
Yet, for the most commonly seen fliers - insects, researches on this flight mode are rare. In this paper, we combined both experimental
measurements and numerical simulations to investigate the kinematical characteristics, aerodynamic performance
and power requirement of ascending flight in fruit flies (Drosophila virilis). The flies ascend at an advance ratio of about 0.12.
The most significant characteristic of ascending flight is larger stroke amplitude compared to hovering, while the other kinematics
is very similar. From an aerodynamics point of view, this increased stroke amplitude is needed to overcome the negative
effects of “downwash flow”, caused by the upward motion of the fly. Same as hovering, the ascending fruit flies utilize delayed
stall and fast pitching-up mechanisms to generate the majority of the lift required for balancing the weight and body drag. By
using a larger stroke-amplitude to overcome the negative effects of “downwash flow”, larger energy cost (about 20%) than that
of equivalent hovering is required.

合写作者：Xueguang Meng, Yanpeng Liu, Mao Sun

卷号：14

是否译文：否

发表时间：2017-01-12