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    On the shape optimization of flapping wings and their performance analysis

    Access Status
    Fulltext not available
    Authors
    Ghommem, M.
    Collier, N.
    Niemi, A.
    Calo, Victor
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Ghommem, M. and Collier, N. and Niemi, A. and Calo, V. 2014. On the shape optimization of flapping wings and their performance analysis. Aerospace Science and Technology. 32 (1): pp. 274-292.
    Source Title
    Aerospace Science and Technology
    DOI
    10.1016/j.ast.2013.10.010
    ISSN
    1270-9638
    School
    Department of Applied Geology
    URI
    http://hdl.handle.net/20.500.11937/51365
    Collection
    • Curtin Research Publications
    Abstract

    The present work is concerned with the shape optimization of flapping wings in forward flight. The analysis is performed by combining a gradient-based optimizer with the unsteady vortex lattice method (UVLM). We describe the UVLM simulation procedure and provide the first methodology to select properly the mesh and time-step sizes to achieve invariant UVLM simulation results under mesh refinement. Our objective is to identify a set of optimized shapes that maximize the propulsive efficiency, defined as the ratio of the propulsive power over the aerodynamic power, under lift, thrust, and area constraints. Several parameters affecting flight performance are investigated and their impact is described. These include the wingÊ1/4s aspect ratio, camber line, and curvature of the leading and trailing edges. This study provides guidance for shape design of engineered flying systems. © 2013 Elsevier Masson SAS.

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