Abstract. There is continuous effort to try and improve the aerodynamic performance of wind turbine blades. This experimental study focusses on addition a passive slat thick airfoil typically used in inboard part commercial Nine different configurations are considered, with both clean tripped main airfoil. The results compared without slat, as well equipped vortex generators. It found that, whe...

Articles you may be interested in A self-consistent model for the saturation dynamics of the vortex shedding around the mean flow in the unstable cylinder wake Study of the long-time dynamics of a viscous vortex sheet with a fully adaptive nonstiff method We develop a model to numerically study the dynamics of vortex streets in channel flows. Previous work has studied the vortex wakes of specif...

where φ is the angle between the unit vortex line tangent vectors ξ(x−y, t) and ξ(x, t). Some degree of smoothness of the bundle of vortex lines near a potential singularity may result in averting blowup [3]. For simplicity, we’ll discuss Lipschitz continuous cases, although Hölder continuous cases may be analyzed in a similar fashion. We distinguish between the sine-Lipschitz case (i.e. sinφ i...

Abstract The Pancharatnam–Berry phase induced by the winding topology of polarization around a vortex singularity at bound states in continuum (BIC) provides unique approach to optical (OV) generation. BIC-based OV generators have potential outperform their counterparts that rely on spatial variations terms design feasibility, fabrication complexity, and robustness. However, given fact this cla...

The thermodynamic nature of two-dimensional vortex matter is studied through a duality analysis of the XY model over the square lattice with low uniform frustration. A phase-coherent vortex lattice state is found at low temperature if rigid translations are prohibited. It shows a nonzero phase rigidity that is degraded exclusively by the creation of dislocation pairs. The unbinding of such pair...

Vortex rings are one of the fundamental flow structures in nature. In this paper, the generation of circulation and vortex rings by a vortex generator with a static converging conic nozzle exit is studied numerically. Conic nozzles can manipulate circulation and other flow invariants by accelerating the flow, increasing the Reynolds number, and by establishing a two-dimensional flow at the exit...