Sample interview questions: Can you explain the concept of wind farm wake interaction with atmospheric boundary layer dynamics?
Sample answer:
Wind farm wake interaction refers to the phenomenon where the wake generated by one wind turbine affects the performance and dynamics of neighboring turbines within a wind farm. This interaction is influenced by atmospheric boundary layer dynamics, which refers to the characteristics and behavior of the air flow close to the Earth’s surface.
The atmospheric boundary layer is the layer of the atmosphere that is directly influenced by the Earth’s surface and extends up to a few hundred meters above it. It is characterized by turbulence, wind shear, and other complex flow phenomena. These dynamics play a significant role in the operation and efficiency of wind farms.
When wind turbines operate, they extract energy from the wind, causing a decrease in wind speed downstream of the turbine, resulting in the formation of a wake. This wake is characterized by lower wind speeds and increased turbulence compared to the undisturbed wind. As a result, the downstream turbines experience reduced wind speeds and changes in wind direction, affecting their performance and power output.
The interaction between wind farm wakes and atmospheric boundary layer dynamics is a complex process that involves the understanding of several factors. These factors include the size and spacing of the turbines, the atmospheric stability, and the atmospheric turbulence characteristics.
The wake effects can lead to reduced power output and increased dynamic loads on the downstream turbines. The reduction in power output occurs because the turbines in the … Read full answer
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