Reliable wind modelling is of crucial importance for wind farm development. The common practice of using sector-wise Weibull distributions has been found inappropriate for wind farm layout optimization. In this study, we propose a simple and easily implementable method to construct joint...

Pitch value is an important consideration in residential gable roof design and construction. However, how roof pitch, coupled with air flows in attic space, affects the energy performance of building attics has been barely investigated. In this paper, a 2D unsteady computational fluid dynamics...

A control system for a vertical axis wind turbine is presented. The electric load is determined solely from the rotational velocity and the characteristics of the turbine, thus measurements of the incoming wind speed are not required. The control system is evaluated with an aerodynamic vortex...

Renewable energy sources such as wind energy are copiously available without any limitation. Many studies have been done on wind and its effects due to its importance in human life. In this research, an attempt is preformed for describing the wide range of wind impacts. This paper has presented...

A particle model for calculating turbine wake flow during the optimization of wind farm micro-siting is presented. This model treats the wake flow as virtual particles generated by the turbine rotor. Based on the pre-calculated flow field of empty wind farm, the motions of the particles are...

Wind resource assessment is a critical parameter in a diverse range of considerations within the built environment. Engineers and scientists, engaging in building design, energy conservation/application and air-quality/air-pollution control measures, need to be cognisant of how the associated...

As consequences of heavy floods in Germany in August 2002, the Umweltbundesamt UBA—German Environmental Protection Agency—started a research project on the safety of industrial installations due to technical as well as natural risks. Although the main focus of this research was on floods,...