Flood Safety on Dikes with Wind Turbines

Many governments want to realize wind power, because it is a technology that promotes sustainable energy. That is why there is need for locations for wind farms (groups of wind turbines). Dikes are good locations for wind farms, because of favourable wind conditions, the absence of cultivation and the presence of road infrastructure. However,...

Kinetic model for self-crack-healing in ceramics and possibility of turbine blade applications

Self-crack-healing behaviors in alumina/ silicon carbide (SiC) nanocomposites (agent diameter of 270 nm) having the semi-eliptical surface crack were investigated at various healing temperatures TH and oxygen partial pressures pO2 in standard pressure. The results showed the complete strength recovery was attained by heating at test temperature...

Design and flow analysis of radial and mixed flow turbine volutes

Radial and mixed flow turbines which are an important component of a turbocharger consist essentially of a volute, a rotor and a diffuser. Vaneless volute turbines, which have reasonable performance and low cost, are the most used in turbochargers for automotive engines. Care has to be done in the design of the volute, whose function is to...

Unstructured periodic grid generation around 2D turbine cascades

A novel grid generation algorithm for periodic unstructured grid around two-dimensional highly-staggered turbine cascades, including multiply connected blade geometries, is presented. The idea is to generate the mesh in a transformed space in which the periodic boundaries are coincident and internal to the computational domain so that no special...

Large Eddy Simulation of the flow around a wind turbine blade

Large Eddy Simulations (LES) of incompressible turbulent flow around a wind turbine blade at a chord Reynolds number of 5000 are performed using high-order spectral/hp element method (SEM). The method and the early results of the simulations are presented. Some requirements with respect to mesh generation for the SEM concerning h- and p...