17 citations · 30 across the 7 of their papers we have counts for
7 papers
Reynolds-number regimes of corrugation-induced lift enhancement in two-dimensional dragonfly-like wings
Yusuke Fujita, Makoto Iima
Corrugated wing structures commonly observed in insect wings can enhance aerodynamic performance at low Reynolds numbers (). However, their effectiveness strongl…
Formation of a Single Bioconvection Spot in Euglena Suspension Induced by Negative Phototaxis
Hiroshi Yamashita, Takayuki Yamaguchi, Nobuhiko J. Suematsu +2
Microorganisms are known to alter their motility in response to external stimuli. A typical example is the responseknown as taxis, which includes behaviors such as moving toward a…
Optimal external forces of the lock-in phenomena for the flow past inclined plate in a uniform flow
Makoto Iima
We theoretically studied the optimal control, frequency lock-in, and phase lock-in phenomena due to the spatially localized periodic forcing in the flow past the inclined plate. Al…
Dynamic lift enhancement mechanism of dragonfly wing model by vortex-corrugation interaction
Yusuke Fujita, Makoto Iima
The wing structure of several insects, including dragonflies, is not smooth, but corrugated; its vertical cross-section consists of a connected series of line segments. Some previo…
Jacobian-free algorithm to calculate the phase sensitivity function in the phase reduction theory and its applications to Kármán's vortex street
Makoto Iima
Phase reduction theory has been applied to many systems with limit cycles; however, it has limited applications in incompressible fluid systems. This is because the calculation of…
Active lift inversion process of heaving wing in uniform flow by temporal change of wing kinematics
Makoto Iima, Naoto Yokoyama, Kei Senda
The transition of the vortex pattern and the lift generated by a heaving wing in a uniform flow was investigated numerically. Motivated by insects' flight maneuverability, we studi…
Numerical analysis of transient orbits by the pullback method for covariant Lyapunov vector
Takayuki Yamaguchi, Makoto Iima
In order to analyze structure of tangent spaces of a transient orbit, we propose a new algorithm which pulls back vectors in tangent spaces along the orbit by using a calculation m…