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论文类型： 期刊论文

发表时间： 2015-09-01

发表刊物： SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY

收录刊物： SCIE、EI、Scopus

卷号： 58

期号： 9

ISSN号： 1674-7348

关键字： self-propelled; bird flying; numerical simulation; three-dimensional

摘要： In this paper, a study of a three-dimensional (3D) self-propelled bionic flying bird in a viscous flow is carried out. This bionic bird is propelled and lifted through flapping and rotating wings, and better flying can be achieved by adjusting the flapping and rotation motion of wings. In this study, we found that the bird can fly faster forward and upward with appropriate center of rotation and oscillation without more energy consumption and have perfect flight performance at a certain angle of attack by adjusting the center of oscillation. The 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.