Systematic investigation of a flapping wing in inclined stroke-plane hovering

Shanmugam, A. R.; Sohn, Chang Hyun

doi:10.1007/s40430-019-1840-6

Cited by 5 publications

(3 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We employed stroke plane angle β to describe the inclined degree of the stroke plane with respect to plane X Y . The stroke-plane angle is the angle between the normal vector of the stroke plane and axis Z [47]. The three Euler angles describe the orientation of the wing relative to the stroke plane: flapping angle θ, deviation angle φ and rotation angle ϕ.…”

Section: Coordinates and Definition Of Anglesmentioning

confidence: 99%

See 1 more Smart Citation

Effect of wing–wing interaction coupled with morphology and kinematic features of damselflies

et al. 2020

View full text Add to dashboard Cite

We investigated the effect of the wing–wing interaction, which is one key aspect of flight control, of damselflies (Matrona cyanoptera and Euphaea formosa) in forward flight that relates closely to their body morphologies and wing kinematics. We used two high-speed cameras aligned orthogonally to measure the flight motions and adopted 3D numerical simulation to analyze the flow structures and aerodynamic efficiencies. The results clarify the effects of wing–wing interactions, which are complicated combinations of biological morphology, wing kinematics and fluid dynamics. As the amplitude of the hindwing of M. cyanoptera is larger than that of E. formosa, the effect of the wing–wing interaction is more constructive. Restricted by the body morphology of E. formosa, the flapping range of the hindwing is below the body. With the forewing in the lead, the hindwing is farther from the forewing, which is not susceptible to the wake of the forewing, and enables superior lift and thrust. Because of the varied rotational motions, the different shed direction of the wakes of the forewings causes the optimal thrust to occur in different wing phases. Because of its biological limitations, a damselfly can use an appropriate phase to fulfill the desired flight mode. The wing–wing interaction is a compromise between lift efficiency and thrust efficiency. The results reveal that a damselfly with the forewing in the lead can have an effective aerodynamic performance in flight. As an application, in the design concept of a micro-aircraft, increasing the amplitude of the hindwing might enhance the wing–wing interaction, thus controlling the flight modes.

show abstract

Section: Coordinates and Definition Of Anglesmentioning

confidence: 99%

“…The flight motions were quantified with curve fitting. We used a trigonometric function to approximate the flapping motion; such a fitted function has been widely used [45,47,[49][50][51]. As the deviation and rotation angles were more complicated, a Fourier series was employed to fit the motions.…”

Section: Coordinates and Definition Of Anglesmentioning

confidence: 99%

Effect of wing–wing interaction coupled with morphology and kinematic features of damselflies

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Furthermore, the significance of the study is Re that indicates that the proposed asymmetric hovering mechanism for small insects may not work. Shanmugam and Sohn [24] conducted a systematic study of a flapping wing in inclined plane hover for several parameter spaces: Pitch amplitudes with other kinematic parameters such as stroke plane inclination (10° ≤ β ≤ 80°), stroke amplitude(0.5 ≤ 𝐴𝑜/𝑐 ≤ 5), heave-pitch phase difference(− 45°≤ 𝜑 ≤ 90°), and Reynolds number (15.7 ≤ 𝑅𝑒 ≤ 10 4 ) on the aerodynamic performance and vortex structures. The results indicate that the pitch magnitude B has a significant effect on the aerodynamic performance.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Variation Stroke Plane Effect on Aerodynamic Performance of a 2D Flapping Airfoil Naca 0012 in Hovering Flight

Trifi

Rebhi²,

Elhadj³

et al. 2022

CFDL

View full text Add to dashboard Cite

This paper presents a numerical study of the effects generated by the variation of translation plane inclination angle on the aerodynamic performance (aerodynamic forces, energy consumption, and wing flow structures). This inclination angle is called . In our work, a two-dimensional airfoil will be presented using commercial software based on the finite volumes method .The numerical simulations are carried out using the experimental results parameters. Symmetric wing flapping motions with different angles of the stroke plane inclination β in conjunction with other kinematic parameters such as oscillation amplitude and Reynolds number () are examined to investigate the influence of these parameters on the energy consumption of the profile. The governing parameters of the problem under study are: the chord of the profile , the initial angle of rotation , the oscillation amplitude ∆α, the reduced frequency, Reynolds number, flow velocity , turbulence intensity at the inlet is, translation amplitude and phase difference between the rotation and translation motion .The obtained numerical results were compared with the experimental data. Moreover, vorticity and pressure contours for different values of angle will be also presented.

show abstract

Investigation of the aerodynamic performance of the dragonfly-inspired tandem wings considering the coupling between the stroke plane and phase difference

Yang,

Luo,

Lang

et al. 2024

Aerospace Science and Technology

View full text Add to dashboard Cite

Systematic investigation of a flapping wing in inclined stroke-plane hovering

Cited by 5 publications

References 37 publications

Effect of wing–wing interaction coupled with morphology and kinematic features of damselflies

Effect of wing–wing interaction coupled with morphology and kinematic features of damselflies

Numerical Investigation of Variation Stroke Plane Effect on Aerodynamic Performance of a 2D Flapping Airfoil Naca 0012 in Hovering Flight

Investigation of the aerodynamic performance of the dragonfly-inspired tandem wings considering the coupling between the stroke plane and phase difference

Contact Info

Product

Resources

About