@Article{CiCP-23-951,
author = {Kosuke Suzuki and Masato Yoshino},
title = {Numerical Simulations for Aerodynamic Performance of a Butterfly-Like Flapping Wing-Body Model with Various Wing Planforms},
journal = {Communications in Computational Physics},
year = {2018},
volume = {23},
number = {4},
pages = {951--979},
abstract = {<p style="text-align: justify;">Wing planform is one of important factors for lift and thrust generation and
enhancement in flapping flight. In this study, we numerically investigate the effect of
wing planform on aerodynamic performance of a butterfly-like flapping wing-body
model by using the immersed boundary-lattice Boltzmann method. The model flaps
downward for generating the lift force and backward for generating the thrust force
like an actual butterfly. We calculate the aerodynamic performance such as the lift
force, the thrust force, the power expenditure, and the power loading for (i) trapezoidal
wing planforms with various taper ratios (ratio of the wing-tip length to the wing-root
length), (ii) rectangular wing planforms with various aspect ratios (ratio of the square
of the wing length to the wing area), and (iii) an actual butterfly&#39;s wing planform at
the Reynolds number of 500. As a result for the trapezoidal and rectangular wing
planforms, we find that the lift and thrust forces increase at the cost of the power
expenditure as the taper ratio increases and as the aspect ratio increases. In addition,
it is found that the actual butterfly&#39;s wing planform is more efficient than any of the
trapezoidal and rectangular wing planforms.</p>},
issn = {1991-7120},
doi = {https://doi.org/10.4208/cicp.OA-2016-0238},
url = {http://global-sci.org/intro/article_detail/cicp/11201.html}
}