In order to improve the design accuracy of blade method a ducted fan based on element momentum theory, was modified by CFD calculation with higher propose an integrated and efficient for rotor stator. Firstly, fast established initial stator carried out. Then, performance designed calculated method, were redesigned according results. Such continuous iterations finally made results basically con...

Abstract A multi-unit floating offshore wind turbine concept, the wind-tracing turbine, is introduced. In this structure a triangular platform that hosts three 5 MW turbines and moored to seabed with turret-bearing mooring system. This system allows rotate about turret such total yaw moment by environmental load on minimized. study, optimum properties of lines location are determined. To identi...

The forward problem in electroencephalography aims to simulate on the scalp the potential V of an electromagnetic field generated by a simulated source. It must fit precisely with the electromagnetic propagation in the patient head. Yet, the skull anisotropy happens to be highly anisotropic, and must then be modeled. Although boundary element methods cannot deal with anisotropy like finite elem...

The modeling of sound radiation is of fundamental importance for understanding the propagation of acoustic waves and, consequently, develop mechanisms for reducing acoustic noise. The propagation of acoustic waves, are involved in various phenomena such as radiation, absorption, transmission and reflection. The radiation is studied through the linear equation of the acoustic wave that is obtain...

The idea of improving the energy output for small wind turbines without compromising remaining aspects technology, such as costs and structural integrity, is very appealing in context growing concern global warming goal providing electricity to remote isolated regions. This work aims contribute development distributed generation by exploring effects bend–twist coupling on performance a turbine ...

Boundary element method (BEM) is one of the numerical methods to solve boundary value problems of partial differential equations. The BEM is especially useful for wave scattering problems for unbounded domains since the numerical solution obtained by BEM automatically satisfies radiation condition, and also, discretisations only of the boundaries are required and those of the domain extending i...

Optical complex fields have attracted increasing interests because of the novel effects and phenomena arising from the spatially inhomogeneous state of polarizations and optical singularities of the light beam. In this work, we propose a spiral blade plasmonic vortex lens (SBPVL) that offers unique opportunities to manipulate these novel fields. The strong interaction between the SBPVL and the ...