English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The proper orthogonal decomposition (POD) has been applied on a full-scalehorizontal-axis wind turbine (HAWT) to shed light on the wake characteristicsbehind the wind turbine. In reality, the blade tip experiences high deflectionseven at the rated conditions which definitely alter the wake flow field, and inthe case of a wind farm, may complicate the inlet conditions of the downstreamwind turbine. The turbine under consideration is the full-scale model of theNREL 5MW onshore wind turbine which is accompanied by several simulationcomplexities including turbulence, mesh motion and fluid-structure interaction(FSI). Results indicated an almost similar modal behaviour for the rigid andflexible turbines at the wake region. In addition, more flow structures interms of local vortices and fluctuating velocity fields take place at the farwake region. The flow structures due to the wake shed from the tower tend tomove towards the center and merge with that of the nacelle leading to anintegral vortical structure 2.5D away from the rotor. Also, it is concludedthat the exclusion of the tower leads to missing a major part of the wakestructures, especially at far-wake positions.

Modal Analysis of the Wake Shed Behind a Horizontal Axis Wind Turbine with Flexible Blades