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Open AccessArticle

A Study on Microscale Wind Simulations with a Coupled WRF–CFD Model in the Chongli Mountain Region of Hebei Province, China

1
College of Meteorology and Oceanography, National University of Defense Technology, Nanjing 211101, China
2
Hebei Province Meteorological Bureau, Shijiazhuang 050000, China
3
State Key Laboratory of Aerospace, Xi’an 710000, China
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(12), 731; https://doi.org/10.3390/atmos10120731
Received: 30 October 2019 / Revised: 13 November 2019 / Accepted: 19 November 2019 / Published: 21 November 2019
(This article belongs to the Section Meteorology)
To ensure successful hosting of the 2022 Olympic Winter Games, a comprehensive understanding of the wind field characteristics in the Chongli Mountain region is essential. The purpose of this research was to accurately simulate the microscale wind in the Chongli Mountain region. Coupling the Weather Research and Forecasting (WRF) model with a computational fluid dynamics (CFD) model is a method for simulating the microscale wind field over complex terrain. The performance of the WRF-CFD model in the Chongli Mountain region was enhanced from two aspects. First, as WRF offers multiple physical schemes, a sensitivity analysis was performed to evaluate which scheme provided the best boundary condition for CFD. Second, to solve the problem of terrain differences between the WRF and CFD models, an improved method capable of coupling these two models is proposed. The results show that these improvements can enhance the performance of the WRF-CFD model and produce a more accurate microscale simulation of the wind field in the Chongli Mountain region.
Keywords: WRF-CFD model; microscale; wind field; physical schemes; coupling methods; Chongli Mountain WRF-CFD model; microscale; wind field; physical schemes; coupling methods; Chongli Mountain
MDPI and ACS Style

Li, S.; Sun, X.; Zhang, S.; Zhao, S.; Zhang, R. A Study on Microscale Wind Simulations with a Coupled WRF–CFD Model in the Chongli Mountain Region of Hebei Province, China. Atmosphere 2019, 10, 731.

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