风积作用
环境科学
风速
气流
风向
沙漠(哲学)
气象学
塔楼
风力发电
盛行風
太阳镜
大气科学
粗糙度长度
表面粗糙度
水文学(农业)
风廓线幂律
地质学
太阳能
地理
岩土工程
工程类
地貌学
材料科学
哲学
电气工程
认识论
机械工程
考古
复合材料
作者
Jin-Long Xiao,Dongting Ye,Xiaoning Xie,Zhiyuan Yao,Jianjun Qu,Benli Liu
出处
期刊:Solar Energy
[Elsevier]
日期:2022-01-01
卷期号:232: 421-432
被引量:2
标识
DOI:10.1016/j.solener.2022.01.005
摘要
Concentrated solar power (CSP) plants in desert regions disturb the wind regime and blowing sand, thus altering surface erosion and accumulation processes. We investigated wind regimes around the largest central-tower CSP plant in the world in Dubai in a desert environment using computational fluid dynamics to simulate the flows for the entire area, the wind and sand barriers, the central tower, and the heliostats. Over the entire area, increased surface roughness caused by the heliostats reduced wind speed by 20%, but the wind gradually returned to its original speed and direction after the return-flow region. Wind and sand barriers significantly reduced wind speed within 100 m and up to 200 m after the barrier. The area downwind of these barriers showed obvious airflow disruptions, with wind speeds decreasing by more than 50% at a distance of 100 m. The heliostat array reduced wind speed by about 20% locally, but had no effect on the overall wind field. Upwind and downwind of the central tower, the pressure and wind changed greatly, resulting in upwind erosion and downwind sand accumulation. We provide several recommendations regarding the management and design of CSP plants in desert regions.
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