𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Computation of insect hovering

✍ Scribed by Z. Jane Wang

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
105 KB
Volume
24
Category
Article
ISSN
0170-4214

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

We review the results of a recent work on a two‐dimensional mechanism for insect hovering. Resolved computation of two‐dimensional insect hovering shows for the first time that a two‐dimensional hovering motion can generate enough lift to support a typical insect weight. The computation reveals a two‐dimensional mechanism of creating a downward dipole jet of counter‐rotating vortices, which are formed from leading and trailing edge vortices. This suggests that three‐dimensionality is not essential for hovering. The vortex dynamics further eluciates the role of the phase relation between the wing translation and rotation in lift generation. It also gives an intuitive picture of why the instantaneous forces can reach a periodic state after only a few strokes, which in principal enables an insect to take off quickly. The model predicts the lower limits in Reynolds number and amplitude above which the averaged forces are sufficient. Copyright © 2001 John Wiley & Sons, Ltd.

📜 SIMILAR VOLUMES

Numerical simulation of flapping-wing in
Numerical simulation of flapping-wing insect hovering flight at unsteady flow
✍ Decan Zuo; Songlin Peng; Wenyuan Chen; Weiping Zhang 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 625 KB

## Abstract A computational fluid dynamics (CFD) analysis was conducted to study the unsteady aerodynamics of a virtual flying bumblebee during hovering flight. The integrated geometry of bumblebee was established to define the shape of a three‐dimensional virtual bumblebee model with beating its w