Highlights•The genetic algorithm provides a useful tool for bluff-body turbulence control at a
yaw angle.•The optimization of genetic algorithm obtains a 20% drag reduction, 3% larger …

Obtaining aerodynamic forces and moments about all three orthogonal axes for arbitrary
shapes at arbitrary orientations in a fast manner via a measurement technique specific to …

The speed at which a slung load can be carried under an aircraft is often limited by the onset
of divergent oscillations. Simulations using highly-resolved airloads maps are described, in …

Space vehicles encountering the Earth's atmosphere are enveloped in a shock layer
comprising an intense bow shock, further trailing into a shallow oblique shock. Due to …

Objects of arbitrary shapes have to be carried as slung loads under aircraft, particularly
rotorcraft. The flight speed is limited by the possibility of slung loads going into divergent …

This paper brings together three special aspects of bluff-body aeromechanics. Experiments
using our Continuous Rotation method have developed a knowledge base on the 6-degree …

An architecture is proposed for on-demand rapid commuting across congested-traffic areas.
A lighter-than-air (LTA) vehicle provides the efficient loitering and part of the lift, while a set …

Prior work showed high-resolution maps of aerodynamic load coefficients for various
geometric shapes, as well as parametric variations on canonical models. The problem of …

When a rotorcraft carries an external slung load, flight speed is often limited by the fear of
divergent oscillations, rather than vehicle performance. Since slung objects can be of any …

Bluff bodies may assume arbitrary attitudes in a flow, causing aerodynamic loads that are
sensitive to attitude. The Continuous rotation technique obtains 6-component loads on bluff …