论文标题

使用体积惩罚和质量弹簧模型的流体结构相互作用,用于拍打大黄蜂飞行

Fluid-structure interaction using volume penalization and mass-spring models with application to flapping bumblebee flight

论文作者

Truong, Hung, Engels, Thomas, Kolomenskiy, Dmitry, Schneider, Kai

论文摘要

机翼柔韧性在昆虫的空气动力学性能中起着至关重要的作用,因为在惯性和空气动力的影响下飞行过程中翅膀的相当变形。这些力来自昆虫的复杂机翼运动学。在这项研究中,考虑了机翼结构动力学和拍打翼运动,以研究机翼变形对束缚飞行中大黄蜂的空气动力学效率的影响。为此,为此目的实现了流体结构的交互求解器,将灵活机翼的质量弹簧模型与伪柔性代码耦合,以求解不可压缩的Navier-Stokes方程。我们首先考虑一个带有柔软翅膀的层流的束缚大黄蜂。与刚性模型相比,柔性机翼会产生较小的空气动力,但需要少得多的功率。最后,将大黄蜂模型放入湍流中,以研究其对柔性机翼的力产生的影响。

Wing flexibility plays an essential role in the aerodynamic performance of insects due to the considerable deformation of their wings during flight under the impact of inertial and aerodynamic forces. These forces come from the complex wing kinematics of insects. In this study, both wing structural dynamics and flapping wing motion are taken into account to investigate the effect of wing deformation on the aerodynamic efficiency of a bumblebee in tethered flight. A fluid-structure interaction solver, coupling a mass-spring model for the flexible wing with a pseudo-spectral code solving the incompressible Navier-Stokes equations, is implemented for this purpose. We first consider a tethered bumblebee flying in laminar flow with flexible wings. Compared to the rigid model, flexible wings generate smaller aerodynamic forces but require much less power. Finally, the bumblebee model is put into a turbulent flow to investigate its influence on the force production of flexible wings.

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