Changes in wing shape help small hoverflies stay aloft
An analysis of hoverfly flight shows that wing design, not faster flapping, enables the smallest species to generate enough lift to fly.
Aerodynamics as a research area investigates the behavior of gases, primarily air, and the forces and flow phenomena arising when bodies move through them or when gas flows around stationary objects. It encompasses theoretical, computational, and experimental study of flow regimes (incompressible, compressible, transonic, supersonic, hypersonic), boundary layers, turbulence, flow separation, and aerodynamic forces and moments (lift, drag, pitching, rolling, yawing). The field develops and applies governing equations (e.g., Navier–Stokes, Euler), turbulence models, and numerical methods (CFD), as well as wind-tunnel and flight-testing techniques, to optimize performance, stability, control, and efficiency of vehicles and structures interacting with fluid flows.
An analysis of hoverfly flight shows that wing design, not faster flapping, enables the smallest species to generate enough lift to fly.
Plants & Animals
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Butterflies' flight trajectories often appear random or chaotic, and compared with other hovering insects, their bodies follow seemingly mysterious, jagged, jerking motions.
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When you put your hand out the window of a moving car, you feel a force pushing against you called drag. This force opposes a moving vehicle, and it's part of the reason why your car naturally slows to a stop if you take ...
Space Exploration
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Key to winning a cricket match is tricking the other team's batters—no small feat, as bowlers bowl cricket balls nearly 100 miles per hour. In recent years, a bowling technique that has become popular involves keeping the ...
General Physics
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In a research collaboration between the group of Professor Hiroshi Yokoyama of the Department of Mechanical Engineering and KOBE STEEL, LTD., flow, and acoustic fields in an expanding pipe with orifice plates were studied ...
General Physics
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117