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Space–time computational analysis of MAV flapping-wing aerodynamics with wing clapping
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  • 作者:Kenji Takizawa ; Tayfun E. Tezduyar ; Austin Buscher
  • 关键词:Flapping ; wing aerodynamics ; Wing clapping ; MAV ; Contact ; Topology change ; Space–time interface ; tracking
  • 刊名:Computational Mechanics
  • 出版年:2015
  • 出版时间:June 2015
  • 年:2015
  • 卷:55
  • 期:6
  • 页码:1131-1141
  • 全文大小:13,046 KB
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  • 作者单位:Kenji Takizawa (1)
    Tayfun E. Tezduyar (2)
    Austin Buscher (2)

    1. Department of Modern Mechanical Engineering and Waseda Institute for Advanced Study, Waseda University, 1-6-1 Nishi-Waseda, Shinjuku-ku, Tokyo, 169-8050, Japan
    2. Mechanical Engineering, Rice University -MS 321, 6100 Main Street, Houston, TX, 77005, USA
  • 刊物类别:Engineering
  • 刊物主题:Theoretical and Applied Mechanics
    Numerical and Computational Methods in Engineering
    Computational Science and Engineering
    Mechanics, Fluids and Thermodynamics
  • 出版者:Springer Berlin / Heidelberg
  • ISSN:1432-0924
文摘
Computational analysis of flapping-wing aerodynamics with wing clapping was one of the classes of computations targeted in introducing the space–time (ST) interface-tracking method with topology change (ST-TC). The ST-TC method is a new version of the deforming-spatial-domain/stabilized ST (DSD/SST) method, enhanced with a master–slave system that maintains the connectivity of the “parent-fluid mechanics mesh when there is contact between the moving interfaces. With that enhancement and because of its ST nature, the ST-TC method can deal with an actual contact between solid surfaces in flow problems with moving interfaces. It accomplishes that while still possessing the desirable features of interface-tracking (moving-mesh) methods, such as better resolution of the boundary layers. Earlier versions of the DSD/SST method, with effective mesh update, were already able to handle moving-interface problems when the solid surfaces are in near contact or create near TC. Flapping-wing aerodynamics of an actual locust, with the forewings and hindwings crossing each other very close and creating near TC, is an example of successfully computed problems. Flapping-wing aerodynamics of a micro aerial vehicle (MAV) with the wings of an actual locust is another example. Here we show how the ST-TC method enables 3D computational analysis of flapping-wing aerodynamics of an MAV with wing clapping. In the analysis, the wings are brought into an actual contact when they clap. We present results for a model dragonfly MAV.

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