Sökning: "wakes"
Visar resultat 1 - 5 av 50 avhandlingar innehållade ordet wakes.
1. Numerical Computations of Wakes Behind Wind Farms
Sammanfattning : More and larger wind farms are planned offshore. As the most suitable build sites are limited wind farms will be constructed near to each other in so called wind farm clusters. Behind the wind turbines in these farms there is a disrupted flow of air called a wake that is characterized by reduced wind speed and increased turbulence. LÄS MER
2. Numerical Computations of Wakes Behind Wind Farms : A tool to study Farm to Farm interaction
Sammanfattning : More and larger wind farms are planned offshore. As the most suitable sites to build are limited these new wind farms will be constructed near to each other in so called wind farm clusters. Behind the wind turbines in these farms there is a disrupted flow of air called a wake that is characterized by reduced wind speed and increased turbulence. LÄS MER
3. Wind turbine wakes : controland vortex shedding
Sammanfattning : Wind tunnel studies of the wake behind a model wind turbine have been made in order to get a better understanding of wake development as well as the possibility to predict the power output from downstream turbines working in the wake of an upstream one. Both two-component hot-wire anemometry as well as particle image velocimetry (PIV) have been used to map the flow field. LÄS MER
4. Wind turbine "wakes"
Sammanfattning : .... LÄS MER
5. Medan världen vakar : Studier i de gotländska runinskrifternas språk och kronologi
Sammanfattning : The dissertation investigates the language of the runic inscriptions of Gotland and its development during the extended period of runic writing on the island. The oldest inscriptions are from the migration period (200–500 AD), the youngest from the beginning of the 17th century.The ca. LÄS MER