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Wing rotation and the aerodynamic basis of insect flight.
A comprehensive theory incorporating both translational and rotational mechanisms may explain the diverse patterns of wing motion displayed by different species of insects.
High-throughput Ethomics in Large Groups of Drosophila
A camera-based method for automatically quantifying the individual and social behaviors of fruit flies, Drosophila melanogaster, interacting in a planar arena finds that behavioral differences between individuals were consistent over time and were sufficient to accurately predict gender and genotype.
The aerodynamic effects of wing rotation and a revised quasi-steady model of flapping flight.
A standard quasi-steady model of insect flight is modified to include rotational forces, translational forces and the added mass inertia, and the revised model predicts the time course of force generation for several different patterns of flapping kinematics more accurately than a model based solely on translational force coefficients.
Rotational accelerations stabilize leading edge vortices on revolving fly wings
The analysis and experiments suggest that the mechanism responsible for LEV stability is not dependent on Reynolds number, at least over the range most relevant for insect flight (100<Re<14,000).
UNSTEADY AERODYNAMIC PERFORMANCE OF MODEL WINGS AT LOW REYNOLDS NUMBERS
The synthesis of a comprehensive theory of force production in insect flight is hindered in part by the lack of precise knowledge of unsteady forces produced by wings. Data are especially sparse in…
The control of flight force by a flapping wing: lift and drag production.
A dynamically scaled mechanical model of the fruit fly Drosophila melanogaster is used to study how changes in wing kinematics influence the production of unsteady aerodynamic forces in insect flight, finding no evidence that stroke deviation can augment lift, but it nevertheless may be used to modulate forces on the two wings.
Spanwise flow and the attachment of the leading-edge vortex on insect wings
It is reported that, at the Reynolds numbers matching the flows relevant for most insects, flapping wings do not generate a spiral vortex akin to that produced by delta-wing aircraft, and it is found that limiting spanwise flow with fences and edge baffles does not cause detachment of the leading-edge vortex.
Unsteady forces and flows in low Reynolds number hovering flight: two-dimensional computations vs robotic wing experiments
Comparing computational, experimental and quasi-steady forces in a generic hovering wing undergoing sinusoidal motion along a horizontal stroke plane investigates unsteady effects and compares two-dimensional computations and three-dimensional experiments in several qualitatively different kinematic patterns.
How animals move: an integrative view.
- M. Dickinson, C. T. Farley, R. Full, M. Koehl, R. Kram, S. Lehman
- Engineering, BiologyScience
- 7 April 2000
Muscles have a surprising variety of functions in locomotion, serving as motors, brakes, springs, and struts, and how they function as a collective whole is revealed.
The Aerodynamics of Free-Flight Maneuvers in Drosophila
The results show that a fly generates rapid turns with surprisingly subtle modifications in wing motion, which nonetheless generate sufficient torque for the fly to rotate its body through each turn.