三维扑翼鸟在自主飞行中俯仰角的控制和数值模拟  

Numerical simulation and control of the angle of pitch of self-propelled flying bird with flapping wings

作　　者：朱霖霖[1,2] 吴锤结[1,2] 

机构地区：[1]工业装备结构分析国家重点实验室,大连116024 [2]大连理工大学航空航天学院,大连116024

出　　处：《中国科学：物理学、力学、天文学》2016年第6期70-82,共13页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家自然科学基金(批准号:11372068);国家重点基础研究计划(编号:2014CB744104)资助项目

摘　　要：鸟类向前直飞的飞行状态主要取决于鸟体受到的升力、驱动力和鸟体的俯仰角.选择适当的翅膀拍动和旋转规律可以帮助鸟类获得足够的升力和驱动力,伴随着会产生一定的转动力矩,影响鸟体的俯仰角.本文通过对三维扑翼鸟在黏性不可压流体中自主飞行的数值模拟,揭示了起始俯仰角度和尾巴与躯干所成角度分别对飞行过程中鸟体俯仰角的影响:前者的主要影响限于起飞后的一段时间内,而后者的影响则贯穿整个自主飞行过程.这里使用了一个三维计算流体力学软件包,其中函括了浸入边界法(IBM)、体积函数法(VOF)、自适应多重网格有限体积法和游动与飞行的控制机制.The thrust force, lift force and angle of pitch are very important for the flight performance of birds. The flapping and rotation motion of wings can help birds get not only the thrust and lift forces, but also rotating torque, which causes angle of pitch to lose control. In this paper, a study of a three-dimensional （3D） self-propelled flying bird in a viscous flow is carried out, we found that the main effect of initial value on angle of pitch is only at the beginning of the bird＇s flight, and the effect of the angle between the body trunk axis and the tall axis is through the entire flight. This study utilizes a 3D computational fluid dynamics package which constitutes combined immersed boundary method and the volume of fluid method. In addition, it includes adaptive multigrid finite volume method and control strategy of swimming and flying.

关 键 词：自主飞行 扑翼鸟 数值模拟 三维 

分 类 号：Q811[生物学—生物工程]