English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

In this work, we have performed numerical simulations of the flapping motionof a rectangular wing in a three-dimensional flow field using the discretevortex method (DVM). The DVM method is computationally more convenient becauseit does not require the generation of a grid for the flow field at each timestep as in other conventional simulation methods. In addition to the rigid wingcase, the aerodynamic characteristics of a deformable wing are alsoinvestigated. The deformable wing is studied in various configurations, such asbending, twisting, and bending-twisting coupling (BTC). The investigation ofall four modes involves a detailed analysis of the flow mechanisms and vortexdynamics, which play a crucial role in influencing the aerodynamic forces,namely lift and thrust. The study aims to understand how these flow patternschange under different operating conditions and how these changes impact thegeneration of lift and thrust. The lift, thrust, and propulsive efficiency ofall four modes are compared to provide a detailed understanding of theiraerodynamic characteristics. The bent wing showed more lift compared to therigid wing, but minimal improvements in thrust. In contrast, the twisted wingshowed greater improvements in both lift and thrust. The BTC wing proves to bethe most efficient method to improve aerodynamic performance during flapping.The parametric dependence of kinematic parameters such as asymmetric ratio(downstroke speed to upstroke speed), aspect ratio and reduced frequency on theaerodynamic performance was also investigated.

Aerodynamic performance and flow mechanism of 3D flapping wing using discrete vortex method