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    Shape optimisation and performance analysis of flapping wings

    Access Status
    Fulltext not available
    Authors
    Ghommem, M.
    Collier, N.
    Niemi, A.
    Calo, Victor
    Date
    2012
    Type
    Conference Paper
    
    Metadata
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    Citation
    Ghommem, M. and Collier, N. and Niemi, A. and Calo, V. 2012. Shape optimisation and performance analysis of flapping wings, in Civil-Comp Proceedings.
    Source Title
    Civil-Comp Proceedings
    ISBN
    9781905088553
    School
    Department of Applied Geology
    URI
    http://hdl.handle.net/20.500.11937/51493
    Collection
    • Curtin Research Publications
    Abstract

    In this paper, we consider the shape optimization of flapping wings in forward flight. This analysis is performed by combining a gradient-based optimiser with the unsteady vortex lattice method. The objective is to identify a set of optimised shapes that maximise the propulsive efficiency under lift, thrust, and area constraints. The geometry of the wings is modelled using B-splines. The flow simulations using the optimal wing shapes indicate that changes in the shape have significant effects on averaged quantities. The optimal shape configuration substantially increases the time averaged thrust while, at the same time, it acquires a larger input of aerodynamic power. Increasing the number of variables (i.e., providing the wing shape with a greater degree of spatial freedom) enables increasingly superior designs. This study should provide better guidance for shape design of engineered flying systems. © Civil-Comp Press, 2012.

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