Abstract: The aerodynamic characteristics of wakes in complex terrain have a profound impact on the energy yield of wind farms and on the fatigue loads on wind turbines in the wind farm. In order to detail the spatial variations of ...

Abstract: A novel approach to measure the wind flow field in a utilityscale wind farm is described. The measurement technique uses a mobile, threedimensional scanning LiDAR system to make successive measurements of the lineofsight ...

Abstract: Dynamically scaled experiments and numerical analyses are performed to study the effects of the wake from an upstream wind turbine on the aerodynamics and performance of a downstream wind turbine. The experiments are carried ...

Abstract: The accurate modeling of the wind turbine wakes in complex terrain is required to accurately predict wake losses. In order to facilitate the routine use of computational fluid dynamics in the optimized micrositing of wind ...

Abstract: In the present paper, an experimental investigation of the effects of rim seal purge flow on the performance of a highly loaded axial turbine stage is presented. The test configuration consists of a oneandahalf stage, ...

Abstract: An increase in the penetration of renewables generated electricity has technical and economic impacts on power transmission systems because of the renewables' variable characteristics. However, due to concerns of energy ...

Abstract: The paper presents an experimental and computational study of the unsteady behavior of the rotor hub passage vortex in an axial lowpressure turbine. Different flow structures are identified as having an effect on the size, ...

Abstract: In the present paper, the results of an experimental and numerical investigation of the hub cavity modes and their migration into the main annulus flow are presented. A one-and-a-half stage, unshrouded and highly loaded ...