@article{oai:soar-ir.repo.nii.ac.jp:00021768,
 author = {Suzuki, Kosuke and Yoshino, Masato},
 issue = {3},
 journal = {FLUID DYNAMICS RESEARCH},
 month = {May},
 note = {The aerodynamic performance of flapping- and revolving-wing models is investigated by numerical simulations based on an immersed boundary-lattice Boltzmann method. As wing models, we use (i) a butterfly-like model with a body and flapping- rectangular wings and (ii) a revolving-wing model with the same wings as the flapping case. Firstly, we calculate aerodynamic performance factors such as the lift force, the power, and the power loading of the two models for Reynolds numbers in the range of 50-1000. For the flapping-wing model, the power loading is maximal for the maximum angle of attack of 90 degrees, a flapping amplitude of roughly 45 degrees, and a phase shift between the flapping angle and the angle of attack of roughly 90 degrees. For the revolving-wing model, the power loading peaks for an angle of attack of roughly 45 degrees. In addition, we examine the ground effect on the aerodynamic performance of the revolving-wing model. Secondly, we compare the aerodynamic performance of the flapping- and revolving-wing models at their respective maximal power loadings. It is found that the revolving-wing model is more efficient than the flapping- wing model both when the body of the latter is fixed and where it can move freely. Finally, we discuss the relative agilities of the flapping- and revolving-wing models., Article, FLUID DYNAMICS RESEARCH.49(3):035512(2017)},
 title = {Aerodynamic comparison of a butterfly-like flapping wing-body model and a revolving-wing model},
 volume = {49},
 year = {2017}
}