Based on the wave reflection principle, a floating flapping-panel energy converter was developed. The feasibility study and optimization of new WEC carried out by laboratory research computational fluid dynamics techniques. A numerical model developed for an in-depth to establish relationship between slope tilt angle power. results different periods show that power take-off damping coefficient ...

Avian wing elements have been shown to experience both dorsoventral bending and torsional loads during flapping flight. However, not all birds use continuous flapping as a primary flight strategy. The pelecaniforms exhibit extraordinary diversity in flight mode, utilizing flapping, flap-gliding, and soaring. Here we (1) characterize the cross-sectional geometry of the three main wing bone (hume...

An in-depth analysis of a Large Civil Tiltrotor simulation with a Translational Rate Command control law that uses automatic nacelle deflections for longitudinal velocity control and lateral cyclic for lateral velocity control is presented. Results from piloted real-time simulation experiments and offline time and frequency domain analyses are used to investigate the fundamental flight dynamic ...

We consider how the flapping of kelp blades may enhance the flux of nutrients to a blade, by stripping away the diffusive sub-layer and renewing the fluid at the blade surface. The surface renewal model explains the degree of flux enhancement observed in previous studies under different flow and flapping conditions. We measured the motion of real kelp blades of Laminaria saccharina, Macrocystis...

As a result of years of research on the comparative biomechanics and physiology of moving through water, biologists and engineers have made considerable progress in understanding how animals moving underwater use their muscles to power movement, in describing body and appendage motion during propulsion, and in conducting experimental and computational analyses of fluid movement and attendant fo...

Hypersonic leading-edge separation is studied toward understanding the varying shock-related unsteadiness with freestream Reynolds number ( $$1.66 \times 10^5 \le \text{Re}_D 5.85 10^5$$ ) in newly constructed hypersonic Ludwieg tunnel (HLT) at a design Mach of $$M_\infty =6.0$$ . An axisymmetric flat-face cylinder base body diameter $$D=35$$ mm fitted axial protrusions different fineness $$d/D...