The fence experiment — a first evaluation of shelter models

The Science of Making Torque from Wind

Peña, Alfredo^1 ; Bechmann, Andreas^1 ; Conti, Davide^1 ; Angelou, Nikolas^1 ; Mann, Jakob^1

DTU Wind Energy, Risø Campus, Technical University of Denmark, Roskilde, Denmark^1

关键词: Degrees of complexity;    Far wakes;    Lidar measurements;    Model results;    Obstacle model;    Vertical plane;    Wind directions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/7/072009/pdf
DOI  :  10.1088/1742-6596/753/7/072009

来源: IOP

【 摘 要 】

We present a preliminary evaluation of shelter models of different degrees of complexity using full-scale lidar measurements of the shelter on a vertical plane behind and orthogonal to a fence. Model results accounting for the distribution of the relative wind direction within the observed direction interval are in better agreement with the observations than those that correspond to the simulation at the center of the direction interval, particularly in the far-wake region, for six vertical levels up to two fence heights. Generally, the CFD results are in better agreement with the observations than those from two engineering-like obstacle models but the latter two follow well the behavior of the observations in the far-wake region.